In mammals, the process of inspiration involves?

Question

A. alveolar collapse.

B. negative pressure generated in the chest, causing the lungs to expand to fill the vacuum.

C. multiple functions within the bronchial tree.

D. the ribs and diaphragm pulling on the lungs to produce expansion.

Answer 1

B.

A would cause the lungs to stop functioning, and the ribs and diaphragm are not connected directly to the lungs.