PATHOLOGY

PATHOLOGY MCQ

RESPIRATORY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does the respiratory system deliver oxygen to different parts of the body?
A
breathing
B
circulation
C
inhale carbon dioxide
D
exhale oxygen
Explanation: 

Detailed explanation-1: -Each air sac is surrounded by a network of fine blood vessels (capillaries). The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.

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