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Organs And Body Systems
Test Description: Structure and Function
Instructions: Answer all questions to get your test result.
1) This organ takes carbon dioxide out of the blood and puts oxygen into the blood.
A
heart
B
lungs
C
kidney
D
brain
2) This organ filters waste out of the blood and produces urine.
A
kidneys
B
brain
C
lungs
D
heart
3) This organ is part of the central nervous system.
A
lungs
B
heart
C
kidneys
D
brain
4) What is the main function of the digestive system?
A
It transmits messages between the brain and the muscles.
B
It breaks down food into nutrients such as protein.
C
It chews food.
D
It exchanges gases.
5) These structures in the heart and blood vessels keep blood moving in only 1 direction.
A
chyme
B
arteries
C
valves
D
sinoartial node
6) Which of these cells is a nerve cell?
A
islet cells
B
euglena
C
neurons
D
planaria
7) What nutrient does bile help break down?
A
fat
B
It is not a digestive enzyme.
C
protein
D
sugar
8) Which blood vessels move blood away from the heart?
A
arterties
B
ducts
C
veins
D
villi
9) These thin blood vessels connect arties and veins.
A
ventricles
B
atria
C
villi
D
capillaries
10) These air sacs in the lungs are the site of gas exchange.
A
villi
B
atria
C
nephrons
D
alveoli
11) The heart has this number of chambers.
A
4
B
2
C
none
D
8
12) In which digestive organ are most of the nutrients absorbed into the blood stream?
A
large intestine
B
mouth
C
small intestine
D
stomach
13) Which organ produces bile?
A
liver
B
small intestine
C
large intestine
D
stomach
14) Which is the only type of muscle that is considered to be voluntary?
A
cardiac
B
smooth
C
skeletal
15) The tube that brings air into the lungs is called the ____
A
esophagus
B
common bile duct
C
aorta
D
trachea
16) Which of these causes you to breathe in?
A
Your pyloric sphincter opens.
B
Muscles in the mouth force air into the lungs.
C
The walls of the ventricles contract.
D
Your diaphragm contracts, lowering the pressure in your chest cavity.
17) This digestive organ absorbs water into the bloodstream.
A
large intestine
B
esophagus
C
small intestine
D
stomach
18) These blood cells carries oxygen.
A
plasma
B
white blood cells
C
platelets
D
red blood cells
19) This is the liquid portion of the blood.
A
platelets
B
plasma
C
red blood cells
D
white blood cells
20) These cells help blood clot.
A
platelets
B
white blood cells
C
plasma
D
red blood cells
*select an answer for all questions
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