Human Anatomy and Physiology AFCAT Questions

AFCAT Biology

Human Anatomy and Physiology MCQ Questions


1.
The process of exchange of Oâ‚‚ from the atmosphere with COâ‚‚ produced by cells is called:
A.
Breathing (respiration)
B.
Digestion
C.
Excretion
D.
Circulation
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ANSWER :
A. Breathing (respiration)
2.
In humans, on an average, how many times per minute does a healthy adult breathe?
A.
20–25 times
B.
6–8 times
C.
12–16 times
D.
30–40 times
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ANSWER :
C. 12–16 times
3.
The thin, elastic cartilaginous flap that prevents food from entering the larynx during swallowing is the:
A.
Glottis
B.
Pharynx
C.
Epiglottis
D.
Uvula
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ANSWER :
C. Epiglottis
4.
Which structure is called the 'sound box' (voice box) in humans?
A.
Trachea
B.
Larynx
C.
Pharynx
D.
Bronchus
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ANSWER :
B. Larynx
5.
The trachea divides into two primary bronchi at the level of which vertebra?
A.
1st thoracic vertebra
B.
1st lumbar vertebra
C.
5th thoracic vertebra
D.
7th cervical vertebra
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ANSWER :
C. 5th thoracic vertebra
6.
The actual site of gaseous exchange in human lungs is the:
A.
Bronchi
B.
Alveoli
C.
Trachea
D.
Bronchioles
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ANSWER :
B. Alveoli