Gas exchange is a function of the
A) cardiovascular system.
B) lymphoid system.
C) respiratory system.
D) urinary system.
E) endocrine system.

Question

Quizplus · Accepted Answer

Gas exchange primarily occurs in the respiratory system, specifically in the alveoli of the lungs where oxygen from inhaled air diffuses into the bloodstream and carbon dioxide from the bloodstream diffuses out into exhaled air. The cardiovascular system then transports the oxygen and carbon dioxide throughout the body, but it is not responsible for the gas exchange process itself. The lymphoid, urinary, and endocrine systems are also not directly involved in gas exchange.

Gas Exchange Is a Function of the