Download How Body Systems Work Together

How Body Systems Work Together
The different systems of the human body are constantly working together to carry out the
many functions in your body that have to happen so you can live.
The digestive system works with the circulatory
system when nutrients are absorbed by the small
intestine into the capillaries. The lining of the
small intestine is made up of villi that contain a
network of capillaries. These tiny blood vessels
then carry the nutrient rich blood around the body
where the nutrients are used to provide energy for
cells.
There are many microscopic villi that
line the inside of the small intestine.
Red and blue capillaries can be seen
inside the villus.
Did you know?
Did you know that it takes about 24 hours for food to be digested by your digestive
system? The food is moved through the digestive tract by the wave-like action called
peristalsis.
The respiratory system and the
circulatory system are two other
systems that work closely together.
The heart pumps blood with no
oxygen to the lungs where the blood
picks up oxygen.
The Lungs: capillaries pick up the oxygen from
the lungs and carry the oxygenated blood back to
the heart. Photo Credit: Patrick J. Lynch, medical
illustrator; C. Carl Jaffe, MD, cardiologist.
Did you know?
Did you know that it takes one minute for a red blood cell to circulate around the whole
body? Your body contains about 5.6 litres of blood.
The circulatory system also works with the excretory system.
The main job of the excretory system is to get rid of waste that
could quickly build up in the body. Some of the blood that is
pumped out of the heart moves to the kidneys and skin, which
are excretory organs. These organs remove waste by
excreting urine (pee) or sweat. Some of these wastes are
poisonous to the body and would be a serious threat to your
health if you could not get rid of them.
The human body has two
kidneys to filter blood
Did you know?
Did you know that your lungs are part of the excretory system? The lungs play a role in
the excretory process by getting rid of carbon dioxide. The lungs also get rid of alcohol
(in gas form) that can be measured using the breathalyzer test.