What is the last step that produces an inspiration
A)The atmospheric pressure becomes lower than the intrapleural pressure.
B)The diaphragm contracts.
C)The intercostal muscles contract.
D)The intra-alveolar pressure becomes lower than the atmospheric pressure.

Question

Quizplus · Accepted Answer

The last step that produces an inspiration is when the intra-alveolar pressure becomes lower than the atmospheric pressure. This creates a pressure gradient that causes air to flow into the lungs, leading to inspiration.

What Is the Last Step That Produces an Inspiration