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Name _________________________________ Period _______ Date _________________

THE HUMAN BODY SYSTEMS
System

Digestive

Function
1
...
digest food into
smaller molecules
and absorb
nutrients
3
...
gathers and
interprets
information
2
...
helps maintain
homeostasis

Diagram

Major Organs
Mouth,
esophagus,
stomach, Sm
...

intestine,
rectum, anus
Salivary glands,
pancreas, liver,
gall bladder
Heart
Veins
Arteries
Capillaries
Red blood cells

Brain
Spinal cord
Nerves
Nerve cells =
neurons
hypothalamus

InteractionsWorking with Other
Systems
1
...
w/muscular – control the
contractions of many of the
digestive organs to pass
food along
3
...

1
...
w/digestive – absorb and
deliver digested nutrients to cells
3
...
w/lymphatic – both transport
things to and from cells
5
...
w/nervous – brain controls
heartbeat
7
...
hormones

Controls all other
systems
Hypothalamus – maintains
homeostasis by working
with all systems

System

Excretory

Function
1
...
filters blood

Takes in oxygen
Respiratory and removes carbon
dioxide and water

Skeletal

1
...
provides shape,
support
3
...
produces blood
cells
5
...
w/circulatory – filters
waste out of blood
2
...
w/integumentary –
removes excretory waste

1
...
w/excretory – removes
excretory waste
3
...
w/muscular –
diaphragm controls
breathing

1
...
w/circulatory –
produce blood cells
3
...
w/circulatory and
respiratory – protects
it’s organs

System

Muscular

Endocrine

Function

Diagram

Major Organs

Allows for
movement by
contracting

Cardiac muscle
Smooth muscle
Skeletal muscle
tendons

1
...
w/digestive – allow
organs to contract to push
food through
3
...
w/circulatory – controls
pumping of blood (heart)
5
...
Slow
response, long
lasting

Glands
*Hypothalamus
*Pituitary
*Thyroid
*Thymus
*Adrenal
*Pancreas
*Ovaries
*Testes

1
...
w/nervous – maintain
homeostasis, hormone
release
3
...
w/skeletal – controls
growth of bones

Glands produce
Hormones
Immune

InteractionsWorking with Other
Systems

Fights off foreign
invaders in the
body

White Blood
Cells
*T cells
*B cells
-produce
antibodies
*Macrophages
Skin

1
...
w/lymphatic – has lots
of WBCs to fight
invaders, spleen filters
bacteria/viruses out of
blood
3
...
w/integumentary –
prevents invaders from
getting in

System

Function

1
...
helps regulate
body temp
...
removes
excretory waste
(urea, water)
4
...
produces vitamin
D
1
...
collects excess
fluid and returns
it to blood (2nd
circulatory
system-reaches
places other one
can’t – between
cells)

Reproductive

Allows organisms to
reproduce which
prevents their
species from
becoming extinct
...
w/excretory – removes
cellular waste
2
...
w/immune – prevents
pathogens from entering

1
...
w/circulatory – to
transport materials to
and from cells

Ovaries
1
...
w/muscular – uterus
Testes
contracts to give birth –
*produce
controlled by hormones
sperm



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