Question

What happens to the respiratory system in man going up a hill?

Answer 1

RESPIRTORY SYSTEM BECOMES LOW

Answer 2

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$\red\longmapsto\:$ As altitude increases the pO2 in the atmosphere decreases.

$\red\longmapsto\:$ When a man goes up a hill he gets less oxygen with every breath .

$\red\longmapsto\:$ The rate of respiration increases in response to decrease in the oxygen content in the blood.

$\red\longmapsto\:$ Simultaneously the rate of heart beat increases to increase the supply of oxygen to blood.

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