Which of the following occurs/occur during the cephalic phase of gastric acid secretion?

a. Stimulation of gastrin and histamine release

b. Direct stimulation of parietal cells

c. Inhibition of somatostatin release

d. Both a and b are correct.

e. All of the above are correct.

Video transcript

Hey, everyone. Let's take a look at this question together which of the following initiates the cephalic phase of gastric acid secretion. Is it answer choice. A the smell of food? Answer choice. B the swallowing of food. Answer choice. C the processing of food in the small intestine or answer choice D absorption in the large intestine. Let's work this problem out together to try to figure out which of the following answer choices initiates that cephalic phase of gastric acid secretion. So in order to solve this question, we have to recall what we have learned about the cephalic phase of gastric acid secretion to determine which of the following answer. Choices initiates that cephalic phase. And we can recall that the cephalic phase of gastric acid secretion is initiated by sensory stimuli related to food consumption. And when we say sensory stimuli related to food consumption, we are saying that stimuli, particularly the sight, smell, taste or even the thought of food can directly initiate the cephalic phase of gastric acid secretion. And looking at our answer choices, we can see answer choice. A which says the smell of food is the correct answer. As the smell of food can directly trigger the cephalic phase of gastric acid secretion and all other answer choices are incorrect. I hope you found this video to be helpful. Thank you and goodbye.