The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter. Specifically, these events involve release of
A. secretin in the cephalic phase of digestion.
B. gastrin in the gastric phase of digestion.
C. CCK in the intestinal phase of digestion.
D. lipase in the intestinal phase of digestion.
E. chyle in the secretory phase of digestion
B
You might also like to view...
The center of an atom is called the
A) core. B) hub. C) middle point. D) nucleus. E) focus.
If a microscopic lens is not clean, after cleaning it with lens paper or a cotton swab and lens cleaner, it should be cleaned with hydrochloric acid.
Answer the following statement true (T) or false (F)
Bone is ________ tissue
A) dead connective B) dead epithelial C) living connective D) living epithelial E) living muscle
The ________ valve prevents backflow of blood from the pulmonary trunk into the ________ ventricle.
A. aortic; left B. aortic; right C. pulmonary; right D. pulmonary; left