Transcript Chapter 5
How to Use This Presentation • To View the presentation as a slideshow with effects select “View” on the menu bar and click on “Slide Show.” • To advance through the presentation, click the right arrow key or the space bar. • From the resources slide, click on any resource to see a presentation for that resource. • From the Chapter menu screen click on any lesson to go directly to that lesson’s presentation. • You may exit the slide show at any time by pressing the Esc key. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Resources Chapter Presentation Image and Activity Bank Transparencies Brain Food Video Quiz Bellringers Quotes About Character Chapter menu Chapter Resources Menu Copyright Copyright©©by byHolt, Holt,Rinehart Rinehartand andWinston. Winston.All Allrights rightsreserved. reserved. Quotes About Character “Dreams are the touchstones of our character.” —Henry David Thoreau Chapter Chaptermenu menu Resources Resources Copyright Copyright©©by byHolt, Holt,Rinehart Rinehartand andWinston. Winston.All Allrights rightsreserved. reserved. Chapter 5 Your Body Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Your Body Systems Lessons • Lesson 1 Body Organization • Lesson 2 The Nervous System • Lesson 3 The Endocrine System • Lesson 4 The Skeletal and Muscular Systems • Lesson 5 The Digestive and Urinary Systems • Lesson 6 The Circulatory and Respiratory Systems • Lesson 7 Caring for Your Body Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Bellringer List as many organs in your body as you can. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Objectives • Describe how cells, tissues, and organs work together in the human body. • Summarize how body systems work together. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Start Off Write Name as many body systems as you can. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization From Cells to Systems • Cells Cells are the simplest and most basic units of all living organisms. • Tissues A group of cells that look alike and work together to perform a single function is called a tissue. • Organs Two or more tissues that work together to perform a special function are called an organ. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization From Cells to Systems • Body Systems A group of organs that work together for one purpose is called a body system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Your body is made of cells. These cells are arranged into tissues, organs, and body systems. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Body Systems Work Together • Specific Functions Each one of your body systems is made of organs that work together to perform specific functions for your body. • Depending on Each Other Body systems depend on each other to perform their functions properly. When the body systems work together properly, they keep the body alive and healthy. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Bellringer Write a short paragraph about how a policeman directs traffic. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Objectives • Describe the different parts of the nervous system. • Describe seven common problems of the nervous system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Start Off Write What does the nervous system do? Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Mission Control • What Does the Nervous System Do? Your nervous system regulates all of your body’s functions and activities at the same time. • Parts of Your Nervous System Your nervous system is composed of your brain, spinal cord, nerves, and sensory organs, such as your eyes, ears, and the taste buds on your tongue. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Your nervous system allows you to perform many tasks at once without having to think too much about any one of them. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Your Brain • What Is Your Brain? Your brain is the mass of nervous tissue that is located inside your skull. • Parts of the Brain The brain consists of three parts: 1. the cerebrum 2. the cerebellum 3. the brainstem Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Different parts of your brain control different body functions. The pink, purple, teal, and green areas are all parts of the cerebrum. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System The Central Nervous System • Parts of the Central Nervous System The central nervous system, or CNS, includes your brain and spinal cord. • What Is the Spinal Cord? The spinal cord is a bundle of nervous tissue that is about a foot and a half long and is surrounded by your backbone. The major function of the spinal cord is to relay impulses between the brain and different parts of the body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System The Peripheral Nervous System • Parts of the Central Nervous System The peripheral nervous system, or PNS, is composed of nerves that connect all parts of your body to the central nervous system. • What Is a Nerve? A nerve is a bundle of cells that conducts electrical signals through the body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System The CNS (in orange) acts as the control center for your body. The PNS (in purple) carries information to and from the CNS. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Common Problems of the Nervous System • System Malfunction If any part of the nervous system does not function properly, the body may experience serious problems. The table on the next slide lists some of these problems. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Bellringer Write a paragraph that describes how your body responds when you become excited. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Objectives • Identify the different glands of the endocrine system. • Explain how hormones affect growth and development. • Describe four common problems of the endocrine system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Start Off Write List some factors that could affect your growth. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Grow, Fight, or Flee • What Does the Endocrine System Do? The endocrine system is composed of tissues and organs throughout the body that make and release hormones. • What Are Hormones? Hormones are chemicals that travel in the blood and cause changes in different parts of the body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Your Glands • What Is a Gland? A tissue or group of tissues that makes and releases chemicals is called a gland. Endocrine glands make hormones. • Some Endocrine Glands The names and some of the functions of your endocrine glands are shown on the next slide. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Your Hormones • The Release of Hormones Your hormones control many functions of your body. Your body makes and releases different amounts of hormones at different times of the day, at different times of the month, and at different times in your life. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Common Problems of the Endocrine System • Correct Amount of Hormones Problems with the amount of hormones can interfere with the normal structure and function of the body. The next slide describes some of these problems. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Bellringer Make a guess about the number of bones and muscles that you have in your body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Objectives • Identify the different bones and joints in the skeleton. • Describe eight common problems of the skeletal system. • Identify the three types of muscle. • Explain how muscles move the body. • Describe six common problems of the muscular system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Start Off Write What do muscles do? Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Your Skeleton: Your Body’s Framework • Body Structure and Support Your skeleton is the framework for your body. The bones that make up your skeletal system support your body. • Two Types of Bones Your bones are made of two types of bone tissue. Compact bone is dense bone tissue found on the outside of all bones. Spongy bone is bone tissue that has many air spaces. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems In children, red marrow fills the center of long bones. It is replaced with yellow marrow by adulthood. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Joints • What Is a Joint? A place in the body where two or more bones connect is a joint. • Joint Classification Joints can be classified by how the bones move. Common joints are fixed joints, hinged joints, and ball-and-socket joints. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Common Skeletal and Joint Problems • Fractures, Tears, and More Injuries can cause many problems for bones or joints. The skeletal system can also develop problems as a result of aging or poor diet. The table on the next slide lists and describes some common problems of the skeletal system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Types of Muscle • Smooth Muscle Smooth muscle makes up many of your internal organs, including your stomach and intestines. • Cardiac Muscle Cardiac muscle is the muscle found in the heart. • Skeletal Muscle The muscle that is attached to the bones is called skeletal muscle. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter Chaptermenu menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems How Muscles Make You Move • Flexing When muscles contract, they can only pull the bones, not push them. To bend, or flex, the arm at the elbow, the biceps muscle contracts. • Extending To straighten, or extend, the arm, the triceps muscle has to contract. When the triceps contracts, it pulls the bones of the forearm away from the biceps. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Common Muscular Problems • Preventing Problems To prevent muscle injuries, you should warm up, cool down, and stretch when exercising. The next slide describes some common problems of the muscular system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Bellringer What are the different symptoms that you may have when your food isn’t digested properly? Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Objectives • Describe how the human body digests food and absorbs nutrients. • Describe eight common problems of the digestive system. • Explain how the human body excretes waste. • Describe four common problems of the excretory system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Start Off Write What is the importance of chewing your food? Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Digestion: From Food to Energy • Your Digestive System The group of organs and glands that work together to physically and chemically break down, or digest, food is the digestive system. • Nutrients After digestion, the nutrients are absorbed into the blood and carried to all the cells of the body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems The Journey of Food • Your Mouth Digestion begins in the mouth when you chew your food. • Your Stomach In the stomach, the food particles are mixed with acidic stomach juices. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems The Journey of Food • Your Small Intestine After a few hours, food leaves your stomach and enters your small intestine. Most chemical digestion and absorption happen in the small intestine. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems How the Body Absorbs Nutrients • Absorption in the Small Intestine Digested carbohydrates, proteins, and fats are absorbed in the small intestine. The nutrients are then carried in the blood to the rest of the body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems The villi in the small intestine are lined with tiny blood vessels. Nutrients pass from the intestine to these blood vessels. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Common Digestive Problems • Stomach Acid and More Improper chewing of foods, gulping food when you eat, or too much acid in the stomach can all lead to problems with digestion and with the digestive organs. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Excretion: Removing Liquid Waste • Your Urinary System The urinary system is a group of organs that work together to remove liquid wastes from the blood. • Other Organs of Excretion Your skin and lungs are other organs that excrete liquid wastes. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Filtering Blood • Your Kidneys Your kidneys clean your blood. They also help regulate the amount of water in your body. • The Nephrons The nephrons in the kidneys remove the wastes from the blood through a process called filtration. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Common Problems of the Urinary System • Build-Up of Wastes If the urinary system cannot perform its functions, waste products can build up in the blood. This buildup can lead to lifethreatening conditions. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Bellringer List all of the different things that you can think of that circulate. These items can be both inside and outside of your body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Objectives • Describe how the circulatory system transports and distributes nutrients. • Describe seven common problems of the circulatory system. • Describe the process of breathing. • Describe six common problems of the respiratory system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Start Off Write What does the heart do? Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Circulation: All Aboard! • Your Circulatory System The major function of the circulatory system is to transport nutrients and gases to different parts of the body where they can be used by the cells. • Your Heart and Blood Vessels Every beat of your heart pushes blood through your body and back to the heart. Your blood vessels are like pipes through which the blood flows. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Your heart is a four-chambered organ that pumps blood through the body. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems What Is Blood? • Liquids and Solids Your blood contains the following materials: 1. Plasma 2. Platelets 3. Red blood cells 4. White blood cells Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Supply Lines • Arteries Arteries are blood vessels that carry blood away from the heart. • Veins The vessels that return blood to the heart are called veins. • Capillaries The microscopic blood vessels of the body that link the arteries and veins are called capillaries. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems The Flow of Blood Through the Body • The right ventricle pumps oxygen-poor blood into the two pulmonary arteries. • In the lungs, blood receives oxygen and releases carbon dioxide. Oxygen-rich blood travels through the four pulmonary veins to the left atrium. continued on next slide Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems The Flow of Blood Through the Body • The heart pumps oxygen-rich blood from the left ventricle into the aorta. From the aorta, blood flows into the arteries and then into the capillaries. • As blood travels through the capillaries, it carries oxygen, nutrients, and water to the cells. At the same time, waste materials and carbon dioxide are carried away. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Common Circulatory Problems • A Vital System The circulatory system is vital to the health of the body’s cells. If cells do not get the oxygen and nutrients they need, they will die. If wastes are not removed from the cells, the cells will die. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems The Respiratory System: Why You Breathe • Your Respiratory System The respiratory system is the body system that brings oxygen into the body and removes carbon dioxide from the body. • Your Lungs The lungs are large, sponge-like organs in which oxygen and carbon dioxide are passed between the blood and the environment. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Air moves into and out of the body through the respiratory system. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems How You Breathe • Your Diaphragm The movement of air into and out of the lungs is caused by movement of the diaphragm. The diaphragm is a dome-shaped muscle beneath the lungs. • Inhaling and Exhaling When the diaphragm and the muscles between the ribs contract, air enters the lungs. Air leaves the lungs when the same muscles relax. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems The Process of Breathing • Inhalation happens as the diaphragm contracts and drops, which causes the lungs to fill with air. • Red blood cells pick up the oxygen from the alveolus. Then, the red blood cells release carbon dioxide into the alveolus. continued on next slide Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems The Process of Breathing • Tissues and cells pick up oxygen from the bloodstream and release carbon dioxide and waste gases into the bloodstream. • The blood travels back to the lungs, where it exchanges the waste gases for oxygen. • Exhalation happens as the diaphragm relaxes and rises, which forces air out of the lungs. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Common Respiratory Problems • Protecting Your Respiratory System Your respiratory system helps protect you from harmful materials in the air. One way to help protect your respiratory system is to avoid smoking tobacco and using drugs. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 7 Caring for Your Body Bellringer Identify some common habits that contribute to poor health, and some habits that are good for your health. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 7 Caring for Your Body Objectives • Explain how the health of body systems affects total physical health. • Describe six ways to protect the body systems from harm. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 7 Caring for Your Body Start Off Write List some healthy habits that help protect your body systems. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 7 Caring for Your Body Body Systems and Total Health • • Working Together Each system in your body depends on the other systems to maintain your overall health. If one system fails, the functioning of the other body systems is affected. Protect Your Systems Protecting your body systems is important to maintaining your health. By learning to make good health decisions now, you can protect your health for years to come. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 7 Caring for Your Body Staying Healthy • The following list contains some tips for staying healthy: 1. Eat a healthy, well-balanced diet. 2. Drink lots of water every day. 3. Get enough exercise. 4. Wear proper safety equipment when playing sports, riding a bicycle, or working with tools. 5. Avoid alcohol, illegal drugs, and tobacco. 6. Visit your doctor regularly. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Brain Food Video Quiz Click below to watch the Brain Food Video Quiz that accompanies this chapter. Brain Food Video Quiz You may stop the video at any time by pressing the Esc key. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 1 Body Organization Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 2 The Nervous System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 3 The Endocrine System Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 4 The Skeletal and Muscular Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 5 The Digestive and Urinary Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Chapter 5 Lesson 6 The Circulatory and Respiratory Systems Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “If you stand straight, do not fear a crooked shadow.” —Chinese Proverb Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “One falsehood spoils a thousand truths.” —African Proverb Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “A man cannot be comfortable without his own approval.” —Mark Twain Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Our reverence is good for nothing if it does not begin with self-respect.” —Oliver Wendell Holmes Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “When the character of a man is not clear to you, look at his friends.” —Japanese Proverb Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “What lies behind us and what lies before us are small matters compared to what lies within us.” —Ralph Waldo Emerson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “A good name, like good will, is got by many actions and lost by one.” —Lord Jeffrey Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “To enjoy the things we ought and to hate the things we ought has the greatest bearing on excellence of character.” —Aristotle Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “He that respects himself is safe from others; He wears a coat of mail that none can pierce.” —Henry Wadsworth Longfellow Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “The reputation of a thousand years may be determined by the conduct of one hour.” —Japanese Proverb Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Dreams are the touchstones of our character.” —Henry David Thoreau Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “A man’s character is his fate.” —Heraclitus Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is that which reveals moral purpose, exposing the class of things a man chooses and avoids.” —Aristotle Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “What you do speaks so loud that I cannot hear what you say.” —Ralph Waldo Emerson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Abstinence is the surety of temperance.” —Plato Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “This above all, to thine own self be true/And it must follow, as the night the day/ Thou canst not then be false to any man.” —William Shakespeare Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “No change of circumstances can repair a defect of character .” —Ralph Waldo Emerson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Men acquire a particular quality by constantly acting a particular way . . . you become just by performing just actions, temperate by performing temperate actions, brave by performing brave actions.” —Aristotle Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “The way to gain a good reputation is to endeavor to be what you desire to appear.” —Socrates Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Do what you know and perception is converted into character.” —Ralph Waldo Emerson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Rather fail with honor than succeed by fraud.” —Sophocles Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is higher than intellect.” —Ralph Waldo Emerson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “To know what is right and not do it is the worst cowardice.” —Confucius Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “It takes less time to do a thing right, than it does to explain why you did it wrong.” —Henry Wadsworth Longfellow Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Nature magically suits a man to his fortunes, by making them the fruit of his character.” —Ralph Waldo Emerson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “That soul that can be honest is the only perfect man.” —John Fletcher Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “One does evil enough when one does nothing good.” —German Proverb Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “There is no pillow so soft as a clear conscience.” —French Proverb Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Don't forget to love yourself.” —Soren Kierkegaard Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is the indelible mark that determines the only true value of all people and all their work.” —Orison Swett Marden Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “What we think or what we believe is, in the end, of little consequence. The only thing of consequence is what we do.” —John Ruskin Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Fame is vapor, popularity an accident, riches take wing, and only character endures.” —Horace Greeley Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “You can easily judge the character of a man by how he treats those who can do nothing for him.” —James D. Miles Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Right is right, even if everyone is against it; and wrong is wrong, even if everyone is for it.” —William Penn Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Our deeds determine us, as much as we determine our deeds.” —George Eliot Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is the result of two things: mental attitude and the way we spend our time.” —Elbert Hubbard Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “A man without character is like a ship without a rudder.” —Karl G. Maeser Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is much easier kept than recovered.” —Thomas Paine Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is power.” —Booker T. Washington Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “An individual step in character training is to put responsibility on the individual.” —Robert Baden-Powell Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved. Quotes About Character “Character is a by-product; it is produced in the great manufacture of daily duty.” —Woodrow T. Wilson Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.