Question

question 7 of 10
what is the term for the tiny air sacs in the lungs?
a. alveoli
b. bronchioles
c. capillaries
d. trachea

Explanation:

Alveoli are the tiny air - filled sacs in the lungs where gas exchange occurs. Bronchioles are small airways that lead to the alveoli. Capillaries are small blood vessels. The trachea is the windpipe. So the term for the tiny air sacs in the lungs is alveoli.

Answer:

A. Alveoli