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