Question

question 19
which of the following does not make up part of the lungs?
a alveoli
b bronchioles
c trachea
d bronchi

Explanation:

The trachea is the wind - pipe that leads air to the lungs but is not part of the lung tissue itself. Alveoli are the tiny air - sacs in the lungs, bronchioles are small airways within the lungs, and bronchi are the main airways that branch from the trachea into the lungs.

Answer:

C. trachea