Transcript 1. What is the function of the circulatory system?

Circulatory, Respiratory, &
Digestive
1. What is the function of the
circulatory system?
• Distribute oxygen and nutrients
2. What are the 4 components of
blood & briefly describe.
• -plasma-~90% water
• -Red blood cells-has hemoglobin that
carries oxygen to cells
• -White blood cells-fights infection
• -Platelets-blood clotting
3. Which muscular vessel carries
oxygenated blood throughout
the body?
• Arteries
4. Which vessel
carries
deoxygenated
blood
throughout
the body?
• Veins
5.What are the tiny vessels that
exchange CO2 and O2?
• Capillaries
6. Which blood type is the
universal donor and why?
– -O negative
– Why? Every blood type is compatible
7. Which blood type is the
universal recipient and why?
• AB positive
• Why? It is compatible with every blood
type
• 8. Oxygenated blood enters the heart
Pulmonary
veins
by ____
________
(pathway).
•
9. The first chamber oxygenated
atrium
blood enters is Left
_________
and then
Left ventricle
goes into ________
____ chamber.
•
10. The oxygenated blood forcibly
leaves the heart through the
aorta ____ (pathway).
____
11. Deoxygenated blood (CO2
rich blood) returns to the
heart through which 2
openings?
• inferior vena cava
• -superior vena cava
•
12. Deoxygenated blood enters the
Right atrium
____ ____ chamber of the heart and
Right ventricle
then goes into the ____
____chamber.
•
•
13. The deoxygenated blood returns
to the lungs through the
Pulmonary
arteries
__
__________
(pathways).
14. What is the function of the
respiratory system?
• To exchange carbon dioxide with
oxygen for the circulatory system
15. What happens to the rib
muscles and diaphragm
when we inhale?
• Contract (rib cage expands &
diaphragm moves down)
16. What happens to the rib
muscles and diaphragm
when we exhale?
• Relax
Rib cage
moves down
& diaphragm
moves up
17. What is the function of cilia
and mucus?
• Trap foreign material
18. Which area is common for
food and air?
• Pharynx
19. What separates the food and
air pathways?
• Epiglottis
20. Briefly describe the larynx
and trachea.
• -larynx-voice box
• -trachea-windpipe
21. What is the difference
between the bronchus and
the bronchioles?
• Bronchi is 2 large branches and
bronchioles is many smaller branches
throughout lungs
22. What is important about the
alveoli?
• It is where carbon dioxide is removed
and oxygen is added to the blood
23. What is the mechanical
digestion in the mouth?
• Chewing
24. What is the chemical
digestion in the mouth?
• Amylase enzyme in saliva
25. What is the function of the
salivary glands?
• To produce saliva & moisten food
26. What is the involuntary
muscle contraction that
moves food material?
• Peristalsis
27. What is the chemical
digestion in the stomach?
• HCI & pepsin enzymes in low, acid pH
of ~2
28. What is the mechanical
digestion in the stomach?
• Churning
29. There are 3 organs that help in
digestion but food never enters
them. What are they AND briefly
describe their function.
• liver-makes biles that breaks down fat
• -pancreas-makes digestive enzymes
• -gallbladder-stores bile
30. What is the length AND
importance of the small
intestine?
• ~6m long-most of the digestion occurs
there
31. What is the length AND
importance of the large
intestine?
• ~1.5m long-absorbs water and some
minerals
32. What happens to undigested
food?
• Is forced through rectum and anus as
feces