a. Differentiate clearly between minute ventilation and alveolar ventilation rate.b. Which provides a more accurate measure of ventilatory efficiency, and why?

Describe the functional relationships between volume changes and gas flow into and out of the lungs.

When the inspiratory muscles contract,a. the size of the thoracic cavity increases in diameter,b. the size of the thoracic cavity increases in length,c. the volume of the thoracic cavity decreases,d. the size of the thoracic cavity increases in both length and diameter.

Cary hyperventilates for several minutes before diving into a swimming pool. After he enters and begins swimming underwater, he blacks out and almost drowns. What caused this to happen?

The contraction of the diaphragm and the external intercostal muscles begins inspiration. What happens, in terms of volume and pressure changes in the lungs, when these muscles contract?

What is the significance of (a) Boyle's law, to the process of respiration?

When the diaphragm and external intercostal muscles contract, (a) exhalation occurs, (b) intrapulmonary pressure increases, (c) intrapleural pressure decreases, (d) the volume of the lungs decreases, (e) the size of the thoracic cavity increases.

During inspiration, air moves into the lungs because __________.