Transcript Body Systems

Body Systems
and how they work together
There are 10 body systems:
• Skeletal
• Muscular
• Digestive
• Respiratory
• Circulatory
• Endocrine
• Immune
• Excretory
• Reproductive
• Nervous
The Skeletal System
•The skeletal system is made up of 206 bones.
•The purpose of the skeletal system is to give our body shape and
support and to protect our vital organs. (Ex: our brain is protected by
our skull, our heart and lungs are protected by our ribcage and
sternum)
•Your skeletal system is separated into 2 sections: axial and
appendicular
• The axial skeleton consists of bones that protect vital organs such
as: skull, ribcage, sternum, vertebral column
•The appendicular skeleton consists of bones that connect
appendages to your axial skeleton such as: arm bones (humerus,
radius, ulna) and leg bones (femur, tibia, and fibula)
*Inside of our bones is bone marrow, which is responsible for making
red blood cells*
The Skeletal System
The Skeletal System
The Skeletal System
The Muscular System
•There are over 650 individual muscles that are
attached to our skeletal system.
•The main job for the muscular system is to provide
movement for our bodies.
•Our bodies are made up of 2 different types of
muscles: Voluntary and Involuntary muscles
•Voluntary muscles are muscles we can control .
Also called skeletal muscles they include biceps,
triceps, quadriceps, etc…
•Involuntary muscles are muscles that we cannot
control. They are controlled by our nervous system
and hormones. (Ex: cardiac muscle, smooth muscle,
etc)
The Muscular System
The Muscular System
The Muscular System
The Digestive System
• Our digestive system’s main job is to break down the food
we eat into parts that are so tiny that the useful pieces can
be absorbed into our bloodstream and sent throughout our
bodies and get rid of any leftover parts of the food that our
bodies cannot use.
• The digestive system is made up of the following organs:
esophagus, stomach, liver, gall bladder, pancreas, small
intestine, and large intestine.
• The stomach, liver, gall bladder, and pancreas are all
responsible for hitting the food we eat with chemicals that
break it down into tiny pieces that our bodies can use.
• The stomach produces gastric juices such as hydrochloric
acid and enzymes that break food down for 3-4 hrs into a
creamy liquid.
The Digestive System
• The pancreas and liver produce chemicals that separate
fats, carbohydrates, and proteins from food for our body’s
use.
• The small intestine is where the “food” actually passes into
the bloodstream after it has been broken down by
chemicals. Whatever the body cannot use is passed into
the large intestine and eventually exits the body.
**Your small and large intestine together are over 22 feet
long!**
The Digestive System
The Nervous System
•The nervous system is made up of your brain, spinal chord,
and nerves. The nervous system is known as the body’s
control system.
•The nervous system sends, receives, and processes
impulses that are sent throughout your body that tell your
muscles and organs what to do.
•There are 2 main parts of the nervous system:
•The central nervous system is composed of your brain and
spinal chord.
•The peripheral nervous system includes all of the nerves
that transmit messages from your brain and spinal cord to
your muscles, organs, and glands.
The Nervous System
The Nervous System
Respiratory System
•The respiratory system is responsible for
bringing air into the body and for removing
carbon dioxide.
•The respiratory system is composed of the
nose, trachea, and lungs.
•The trachea branches into the bronchial
tubes, then to bronchioles, and then into the
air sacs. Oxygen passes through the walls of
the air sacs and into the bloodstream.
The Respiratory System
Respiratory System
The Respiratory System
The Circulatory System
•The circulatory system is the body’s transport
system. It is made up of a group of organs that
transport blood throughout the body.
•The circulatory system is composed of the
heart, arteries, veins, blood vessels, and
capillaries.
•Capillaries deliver oxygen and nutrients to the
body’s cells and removes carbon dioxide,
water, and waste.
The Circulatory System
The Circulatory System
The Endocrine and Immune Systems
•The endocrine system is made up of a group of glands that produce hormones that
control metabolism, growth, and sexual development.
•The immune system is our body’s defense system against infections and diseases
that come from viruses and bacteria.
The Immune System
How do our body systems work together?
• Here are a few examples of how body systems work together to do
certain bodily functions:
• skeletal & muscular- provide movement and support.
• digestive & circulatory- digestive system breaks down large
molecules into small molecules to enter the cell. circulatory system
carries small molecules to the cell.
• muscular & nervous- helps you move around and interact with the
environment.
• nervous & endocrine- control coordination of many of the body's
activities; respond to and send messages to cells throughout the
body.
• circulatory & respiratory- exchange gases between body cells and
the environment.
• excretory & circulatory- circulatory brings blood to the excretory
system to be cleaned and filtered.
Transitional Page
Elements
www.animationfactory.com