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Body Systems
(write info that is in RED)
Do you know your organs?
How much is your body worth???
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$45 million.
Bone marrow heads the list…priced at $23
million, based on 1,000 grams at $23,000
per gram.
 DNA - $9.7 million
 Antibodies - $7.3 million
 Lung - $116,400
 Kidney - $91,400
 Heart - $57,000.
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$$$$$$
32 egg cells over eight years for $224,000
 Based on cost estimates taken from US
hospitals and insurance companies.
 Assume that all these substances can be
extracted from living tissue for sale.
 However - this break down is illegal,
unethical and sometimes impossible.
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The Worth of the Body?!?!
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Dreyer’s Ice Cream gourmet taster insured
his taste buds for $1,000,000.00
Worth of a Body
Keith Richards insured his hands for an
undisclosed amount.
 Betty Grable and Jamie Lee Curtis insured
their legs for $1,000,000.00
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Body Systems Essential Question
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What are the structures and functions of
several body systems as related to better
health and disease prevention?
Body System Basics
VOCABULARY
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Cell – the smallest units in which independent
life can exist
Tissue – systems of cells working together to
perform special tasks
Organs – collections of tissues that perform
specific jobs
Body Systems – groups of related organs that
work together to perform major body functions
Homeostasis – the maintenance of a stable body
environment, achieved as body systems adapt
to change
SKELETAL SYSTEM
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Works with the
muscular system to
produce movement.
Bones release
nutrients into the
blood when needed
by other body
systems.
MUSCULAR SYSTEM
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Responds to
messages from the
nervous systems to
move body parts.
Works with the
skeletal system to
achieve movement.
INTEGUMENTARY SYSTEM
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The body system that
includes your skin,
hair, nails, sebaceous
glands and sweat
glands.
Largest organ of the
body
Your body’s first line
of defense.
URINARY SYSTEM
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Works with the
cardiovascular
system to maintain
fluid and chemical
balance in the body.
It filters waste
products out of the
blood into the urine
for removal
RESPIRATORY SYSTEM
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Delivers oxygen to,
and removes wastes
from, the
cardiovascular
system.
It responds to the
nervous and muscular
systems to perform its
tasks.
CARDIOVASCULAR/CIRCULATORY
SYSTEM
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Pumps blood and
carries oxygen and
nutrients to all other
systems. It cleans all
systems of their
wastes. It carries
messages of the
hormonal system.
Its cells come from
the bone marrow of
the skeletal system.
IMMUNE SYSTEM
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Protects all other
body systems from
infection.
Its cells travel through
the cardiovascular
system and through
all body tissues.
NERVOUS SYSTEM
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Communicates with
all other body
systems.
It directs activities of
all the systems and
receives information
about the conditions
in all other systems.
Digestion
Functions of Digestive
System
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Digestion - breaks down food
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Absorption - absorbs nutrients in blood
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Elimination - rids wastes from body
Body Parts (Organs)
Mouth & Teeth – chews food; with the
addition of saliva, starts the breakdown of
food
 Esophagus - muscles move the food
down the esophagus;
 Stomach - saclike organ enclosed in a
muscular wall (3 layers thick); Chyme
 Small Intestine - (20-23 feet long and 1” in diameter)
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fingerlike villi absorb nutrients that are carried
throughout the body by blood
Organs
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Large Intestine - (also called colon)
It is 5-6 feet and 2.5” in diameter
 Absorbs water and eliminates undigested
food.
 Water, vitamins, and mineral salts are
absorbed into the bloodstream in the colon.
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Pancreas and Liver - add secretions to
break the food down further
Care of Digestive System
Eat variety of food
 Avoid fried food
 Eat high fiber foods
 Don’t hurry through meals
 Drink plenty of water
 Don’t drink carbonated beverages
 Don’t “stress eat”
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Problems
Indigestion - burning discomfort in upper
abdomen
 Heartburn - burning pain in center of chest
 Ulcer – stomach protective lining is damaged
& an open sore develops
 Nausea and vomiting - it’s the reverse of the
digestion process
 Diarrhea – food passing quickly through the
large intestine cannot absorb enough water
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Recent Findings
Band Adjustment
Laparoscopic placement of LAP-BAND®
around stomach, adjusting the size of the
opening.of the stomach.
Interactions
with other Systems
Muscular – Involuntary muscles push
and move food throughout the system
 Circulatory/Cardiovascular – nutrients
are absorbed throughout the digestive
system and distributed through blood
 Urinary – helps to filter out waste
 Immune – gastric juices help to kill
bacteria; nutrients in food helps our body
fight off infection
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Endocrine System
Secretes hormones into the
bloodstream.
Function of the Endocrine System
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Collection of glands that produce
hormones that regulate
metabolism, growth and
development, tissue function,
sexual function, reproduction,
sleep, and mood, among other
things.
Major Organs
 Pituitary
gland, thyroid gland,
parathyroid glands, adrenal
glands, pancreas, ovaries (in
females) and testicles (in males)
Watch this video about the thyroid
http://www.livescience.com/26496endocrine-system.html
Reproductive System
 Collection
of Organs that work
together for the purpose of
producing a new life.
 Major organs include the external
genitalia and internal organs,
including ovaries/testicles
We will go over the
Reproductive System in more
depth in the Human Sexuality
Unit
All these Systems Work
Together
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Urinary, Respiratory, Digestive and
Circulatory systems remove waste from
the body.
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Many systems protect the body: Skeletal
Information about Your System
To help understand your system and get information for
the poster, take notes in your journal from the book
Integumentary (Skin)
pg 360-370
Skeletal
pg 386-393
Muscular
pg 394-398
Nervous
pg 399-411
Cardiovascular/Circulatory
pg 416-426
Respiratory
pg 428 -437
Urinary
pg. 453-457
Immune
pg. 628-642
Sign Up for a System
3-4 People per Group
Integumentary ____________________
 Skeletal _________________________
 Muscular ________________________
 Nervous _________________________
 Cardio. __________________________
 Respiratory _______________________
 Urinary ___________________________
 Immune __________________________
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Body System Poster Activity
Count off by 8’s
 Go to the Body System # that matches
 Write down everything you know about the
body system, including organs and functions
 You have 2 minutes at that system, then we
will move as a group to the next poster
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Let’s see what we already know
BODY SYSTEM Poster!!
Grading:
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Accurate & Complete
Information
Educational Content
Neat and well designed
Accurate Visual of Body
System
Easy Note Taking
Grading/Presentations
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Use class time wisely/finished on time
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Each group member summarize the main points
of their section on the poster
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Poster demonstrates a good understanding of
the material
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Complete and educational information
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Easy Note Taking
IN YOUR JOURNAL
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What other machines or mechanical/electrical
systems are designed to maintain a state of
homeostasis (The ability or tendency of an organism or cell to maintain
internal equilibrium by adjusting its physiological processes)
Read more: http://www.answers.com/topic/homeostasis#ixzz1nbxKunG7
Write 1 in your journal.
Basic Info. For Your System
Outline your section of the book and also answering the listed questions.
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Integumentary (Skin) pg 360
(Q’s 1-3 pg 366)
Skeletal pg 386 (Q’s1-3 pg 389 / Q’s1-3 pg 393)
Muscular pg 394
(Q”s 1-3 pg 398)
Nervous pg 399 (Q’s 1-3 pg 405 / Q’s 1-3 pg 409)
Cardio. pg 416 (Q’s 1-3 pg 422 / Q’s 1-3 pg 427)
Respiratory pg 428(Q’s 1-3 pg 431/Q’s 1-3 pg 435)
Urinary pg. 453
(Q’s 1-3 pg 457)
Immune pg. 628
(Q’s 1-3 pg 634)