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