Examine the figure shown.During negative pressure breathing,________.

Question

Quizplus · Accepted Answer

During negative pressure breathing, the diaphragm moves downward and the rib muscles contract, increasing the size of the chest cavity and decreasing the air pressure within the chest cavity. This results in air being drawn into the lungs. Option A describes this process accurately. Options B and C are incorrect, as they describe opposite actions to what actually happens in negative pressure breathing. Option D is also incorrect, as the diaphragm would need to contract (not relax) to increase the size of the chest cavity.

Examine the Figure Shown.During Negative Pressure Breathing,________