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Heart & Lung Anatomy & Physiology
Test Description: Function & structure of heart & lung
Instructions: Answer all questions to get your test result.
1) What structures prevent the blood from flowing in the wrong direction in the heart?
A
Capillaries
B
Vena cava
C
Valves
D
Arteries
2) What process is responsible for moving gases into & out of the capillaries?
A
Osmosis
B
Photosynthesis
C
Mitosis
D
Diffusion
3) In the lungs, where does gas exchange occur?
A
Capillaries around the alveoli
B
Veins in the systemic circuit
C
Around the vena cava
D
Arteries nearest the aorta
4) What kind of blood is found in the veins of the systemic circuit?
A
deoxygenated
B
diffusion
C
oxygenated
D
capillaries
5) What is the sheet of muscle that controls the size & activity of the lungs?
A
diaphragm
B
peristalsis
C
superior vena cava
D
alveoli
6) What would happen to an individual if their red blood cells were not functioning properly?
A
The exchange of oxygen & carbon dioxide would remain the same
B
The exchange of oxygen & carbon dioxide would be less efficient
C
Carbon monoxide would increase in the lungs
D
The trachea would work harder
7) What is the function of the cells lining the trachea?
A
Add deoxygenated blood to incoming air
B
Help filter the incoming air
C
Increase surface area for gas exchange
D
Increase blood flow to the aorta
8) The plasma portion of blood contains:
A
Nutrients from the digestive system
B
Ions
C
All the answers are correct
D
Salts
9) What is the function of white blood cells
A
Increase surface area in the alveoli
B
Remove oxygen from the veins
C
Search & destroy any foreign cells in the body
D
Increase oxygen content in the blood
10) Where is oxygenated blood found?
A
Right ventricle & left atrium & most of the arteries in the body
B
Right side of the heart & almost all of the veins in the body
C
Left side of the heart & almost all of the arteries in the body
D
Left ventricle & right atrium & most of the veins in the body
*select an answer for all questions
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