Transcript 5B SNC2P interacting systems - Nicole

L5B –Interacting Systems
Grade 10 Science
Nicole Klement
Systems
• The different systems of the human body
are constantly interacting to carry out the
many functions that are essential for
survival.
Digestive system
•
•
•
The digestive system works along
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 to the tissues
where the nutrients are used to
provide energy for cell processes
and for growth and repair.
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
• The respiratory system and the
circulatory system are two
other systems that have
essential interconnections. The
heart pumps deoxygenated
blood to the lungs where the
blood acquires 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 & Excretory
Systems
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•
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The circulatory system also works
with the excretory system.
The main job of the excretory
system is to excrete wastes that
could quickly accumulate 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 cellular wastes by
excreting urine or sweat. Some of
these wastes are poisonous to the
body and would create a serious
threat to the health of a person
who 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 the waste gas,
carbon dioxide. The lungs also eliminate
alcohol that can be measured using the
breathalyser test.
Group Review
•
As a group: write the questions into your notebook and
then check your answers when you are finished your
work.
True or False & Explain:
1. The blood in the circulatory system picks up the
nutrients that are absorbed by the small intestine.
2. The kidneys play a role in filtering and excreting
wastes.
3. The heart pumps blood to the lungs where oxygen is
picked up.
4. Why is it important that wastes do not remain in the
human body?
Virtual body tour
http://www.medtropolis.com/VBody.asp
Or
http://www.innerbody.com
Discover 3D images of:
1.
The human brain
2.
Skeleton
3.
Human Heart
4.
Digestive Tract
Spend 15 minutes investigating this site and be ready to share
one NEW fact with the group. If someone shares the same FACT
you need to have a different FACT ready to share. No repetitions.
Assignment: Gas Exchange
Gas Exchange
In a ½ page paragraph:
• Describe the interaction of the respiratory system and the circulatory
system in the process of gas exchange.
1. Support your answer with information you have researched
2. Include information about how the air gets into the blood, what
gases are involved in gas exchange, and where the gases travel.
3. Explain why gas exchange is important to humans.
Complete your answer in sentence form and in your own words.
Resources
• Human Anatomy
http://www.innerbody.com/anim/lungs.html
• Gas Exchange
http://health.howstuffworks.com/humanbody/systems/respiratory/adam200022.html