What is Your Body Like and How do the
Systems Work Together
Living systems have the following level of
organization:
CELLS
TISSUES
ORGANS
ORGAN SYSTEMS
Organism
Our body works because of the
interactions that happen between
organs and organ systems.
For example:
The heart helps to regulate blood flow
throughout the body. The blood
carries oxygen and nutrients to the
cells and carries carbon dioxide and
waste away from the cells.
The human body has a set of systems which
regulate the internal environment and
strives to give our cells the necessary
conditions they need to function.
These systems are made up of organs; each
organ system functions in the human body
and works in cooperation with other systems
to benefit the entire organism.
This balance is called
HOMEOSTASIS.
What would happen if one system
of the human body were to fail or
stop working?
Watch this video and learn more
http://www.brainpop.com/science/diversityofli
fe/humanbody
The skeleton system provides the
support for movement and
protection of internal organs.
The muscular system creates the force that
enables the body to move and carry out
different functions related to movement.
Human Body Systems continued
The reproductive system enables
the organism to make more of its
kind by a process known as
meiosis.
The immune system protects cells
from microscopic invaders, such as
bacteria, protist, and viruses.
Human Body Systems continued
The nervous system controls
body processes by using
electrical impulses via a network
of nerves. Your brain is the
control center for your body.
The endocrine system uses chemical
messages called hormones, which are
released into the blood and regulate
many bodily processes.
The endocrine and nervous
systems are two control
systems that keep the body
in
homeostasis.
Remember: Body systems work
together in maintaining a
constant internal environment.
Human Body Systems continued
The primary function of the
respiratory system is to control the
oxygen entering and the carbon
dioxide leaving our body. We do
this by breathing.
The Circulatory system heart is responsible
for moving the body's blood supply about
1,000 times each day. This is about 5000
quarts of blood each day.
Human Body Systems continued
The digestive system breaks down your
food so all your cells can receive
nourishment. It also gets rid of solid
wastes that your body does not use.
Human Body Systems continued
The urinary system is also called the
excretory system, which produces,
stores, and eliminates (gets rid of)
urine.
The kidney’s primary
function is to filter water
soluble waste products
from your blood
Which 2 body
systems work
together to get rid
of waste products?
How would you feel if
your body could not
get rid of its wastes?
Explain why
Homeostasis is
important to
our bodies!