Download Human Body Systems and Their Importance of Maintaining

Unit 11: Body Systems and Homeostasis
Name:
Aim 60: Human Body Systems and Their Importance of Maintaining Homeostasis
Date
Define Homeostasis: ________________________________________________________________________________
_________________________________________________________________________________________________
SKELETAL
SYSTEM
Function/Purpose:
Notes:
A framework of bones that provides support and protection
for your insides and helps you move around
Name 2 things that are
1) ____________________________:
inside bones and their
function.
2) ____________________________:
How many bones does
an adult have?
What bones is the
spine made up of?
What do they protect?
____________________ bones
Made up of _______________________________________________________________
Protects __________________________________________________________________
How does the skeletal
system maintain
homeostasis?
(how does this system
aid in survival)
MUSCULAR
SYSTEM
Function/Purpose:
Notes:
Move the other parts of your body for movement

What is the difference
between voluntary
and involuntary
muscles? Provide an
example of each.
Voluntary Muscles:
o

Involuntary Muscles:
o
How does the
muscular system
maintain
homeostasis?
(how does this system
aid in survival)
Ex:
Ex:
DIGESTIVE SYSTEM
Function/Purpose:
Notes:
To take in food and digest (break down) it into smaller molecules so the nutrients can
be transported around the body

What is the difference
between mechanical
digestion and chemical
digestion? Where do each
occur?
Mechanical Digestion:
o

Chemical Digestion:
o
Describe the path food
takes from the mouth to
the anus.
Which organ is food
churned and mixed with
enzymes and digestive
juices to breakdown
proteins and fats?
Which organ absorbs the
nutrients so they can
travel in the bloodstream
to your cells?
Which organ absorbs
water?
How does the digestive
system help you maintain
homeostasis?
(how does this system aid
in survival)
Occurs in the ___________________________________________________
Occurs in the ___________________________________________________
_______________  _______________  _______________  _______________ 
_______________  _______________  ______________  _______________
RESPIRATORY SYSTEM
Function/Purpose:
Notes:
To inhale oxygen and exhale carbon dioxide. It serves to exchange gases between
the blood and the environment
What does oxygen allow
your cells to do?
How many lungs do you
have? What happens to your
ribs and lungs when your
diaphragm moves down?
Describe the path air takes
(starting with your mouth
and ending with your
alveoli).

______ lungs

When your diaphragm moves down, the ribs _________________ and the lungs
_________________
_______________  __________________  _________________  _________________
Where does oxygen travel to
after it diffuses through the
walls of the alveoli, which
are inside the lungs?
What gas do cells make that
is harmful, and must travel
through your blood to get to
your lungs so you can
breathe it out?
How does the respiratory
system maintain
homeostasis?
(how does this system aid in
survival)
Alveoli (in the lungs)
CIRCULATORY
SYSTEM
Function/Purpose:
Notes:
Transports oxygen and nutrients to your cells, and carbon dioxide and waste away
from your cells to the lungs, kidneys and the skin to be excreted.
What three things make
up the circulatory
system?
At the lungs:
What gas is dropped off?
What gas is picked up?
At the lungs, _________________ is dropped off and _____________ is picked up
Where does the oxygen
rich blood go after it
leaves the lungs? Why?
Oxygen goes to the ______________ because _________________________________
What is the difference
between arteries and
veins?

Arteries:

Veins:
At the cells:
What gas and materials
does the blood drop off?
What gas and materials
are picked up?
How does the circulatory
system maintain
homeostasis?
(how does this system aid
in survival)
________________________________________________________________________
At the cells, the blood drops off _____________________________________________
and ___________________________________________________ are picked up
URINARY
SYSTEM
Function/Purpose:
What bodily
processes create
poisons in our body
that need to be
excreted?
What is urea and
where is it removed
from?
Which organs filter
urea and other
materials from your
blood?
What organ holds
your urine until it is
released from the
body?
How does your
bladder and brain
“communicate”
with each other to
tell you to go to the
bathroom?
What is the job of
the urethra?
How does the
urinary system help
you maintain
homeostasis?
(how does this
system aid in
survival)
Notes:
Removes wastes such as urea, water and salts that your body doesn’t need
Nervous System
Function/Purpose
What are the three
components of your nervous
system?
What is a nerve cell called?
When you touch something,
what travels through each of
your neurons to eventually
get to the brain?
What is a reflex? Give an
example
How does the nervous system
help you maintain
homeostasis?
(how does this system aid in
survival)
Notes:
The control center for the coordination of many of the body’s activities.
ENDOCRINE SYSTEM
Function/Purpose:
What are glands?
What do they make?
Notes:
A system of glands that secrete hormones into the bloodstream to regulate mood,
growth, development, tissue function, metabolism, and reproductive processes.
Glands are:
Glands make:
What are hormones? Give
an example of a hormone
in the human body
Name the two glands in
your brain responsible for
most of the information
that gets sent to your other
glands
What are two examples of
glands and what are their
functions?
1) _____________________ gland:
2) _____________________ gland:
How does the endocrine
system help you maintain
homeostasis?
(how does this system aid in
survival)