Question

Which of the following is a physiological change that has been shown to occur as a result of exposure to extreme altitudes?

• A. increases in muscle fiber area
• B. increases in mitochondrial volume
• C. decreases in muscle fiber area
• D. both a and b

Answer 1

The correct option is C decreases in muscle fiber area

When a person reside at high altitude where oxygen concentration is very less, then their muscle fibre area decreases for maximization of oxygen carrying capacity.