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Which two of the following changes (A-B)...

Which two of the following changes (A-B) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more )
(A) Increase in red blood cell size
(B) Increase in red blood cell production
( C) Increased breathing rate
(D) Increase in thrombocyte count

A

(A) and (B)

B

(B) and (C)

C

(C) and (D)

D

(A) and (D)

Text Solution

Verified by Experts

The correct Answer is:
B
The body can adapt to human altitude through both immediate and long-term acclimatization. At high altitude in the short term, the lack of oxygen is sensed by the carotid bodies which cause an increase in the breathing depth and rate and also increase red blood cell production.
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