The outer layer of the digestive tract is known as the (a) serosa, (b) mucosa, (c) submucosa, (d) muscularis.

Individuals experiencing prolonged vomiting lose a great deal of hydrochloric acid with the vomitus. Predict the effect this loss of acid will have on the pH of the blood. How will the respiratory system respond to the change in pH? (Connects to Chapters 2 and 21)

The peritoneal cavity is located:

a. around each of the digestive organs.

b. between layers of mesentery.

c. superior to the greater omentum.

d. between the parietal and visceral peritoneum.

Which is more essential to life and why: chemical digestion or mechanical digestion?