Which is TRUE about gastric motility?
A. The basic electrical rhythm of the gastric smooth muscle (three depolarizations per minute) is the same regardless of whether or not food is present.
B. When a wave of excitation reaches the pyloric sphincter, action potentials become inhibitory and the sphincter opens wide to allow chyme to exit.
C. The force of contraction is decreased by gastrin and increased by enterogastrones.
D. The term "slow waves" refer to gastric contractions, while "pacemaker" refers to gastric action potentials.
E. Gastric contractions are strongest in the fundus of the stomach.
Answer: A
You might also like to view...
Which of the following is a treatment for Type I but not Type II diabetes mellitus?
a. diet control b. weight control c. oral medications to lower blood glucose d. insulin therapy e. all of the above work on both conditions
The loose connective tissue component of a mucous membrane is called
A) reticular tissue. B) the basal lamina. C) the lamina propria. D) dense irregular connective tissue. E) adipose tissue.
The ________ is/are in contact with the posterior side to the urinary bladder
A) prostate gland B) bulbourethral gland C) seminal glands D) corpus cavernosum E) testes
Postmenopausal women are at increased risk, compared to premenopausal women, for osteoporosis and atherosclerosis.
Answer the following statement true (T) or false (F)