Biology, Eighth Edition (Raven)

Chapter 48: The Digestive System

Three Phases of Gastric Secretion

View the animation below, then complete the quiz to test your knowledge of the concept.



1.

Which of the following hormones does not inhibit gastric gland secretions?
A)secretin
B)gastrin
C)gastric inhibitory peptide
D)cholecystokinin
2.

Which of the following does not occur during the gastric phase of gastric secretion?
A)Gastrin begins to be secreted by the lower part of the stomach.
B)Hydrochloric acid and pepsin secretion is stimulated in the upper and middle parts of the stomach.
C)Tactile sensation of food in the mouth sends nervous impulses to the medulla oblongata.
D)all of the above
E)none of the above
3.

Which of the following inhibits the secretion of the gastric glands?
A)duodenum pH of less than two
B)lipids in the stomach
C)gastrin
D)A and B
E)A and C
4.

The medulla oblongata controls gastric secretion both by the parasympathetic branch of the nervous system and the endocrine system.
A)True
B)False
5.

Distention of the stomach activates has a direct stimulatory effect on the gastric glands.
A)True
B)False
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.