How Much Do You Know About Gastric Acid Secretion? Quiz
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The foods we eat have bacteria in it, and once it reached the stomach, it is introduced to acid that helps in killing them and easing digestion of foods. Gastric acid can at times be excreted in excess or low volumes due to a number of reasons. How much do you know about gastric acid secretion? Take up the quiz below and get to find out!
- 1.
- A.
At lunch time while deciding which meal to eat
- B.
About one hour after eating the meal
- C.
Five minutes after eating the meal
- D.
Two to three hours after eating the meal
- 2.Which of the following sets of changes in acid secretion and serum gastrin levels are likely to occur in patients with pernicious anemia?
- A.
Increased acid secretion - decreased gastrin
- B.
Increased acid secretion - increased gastrin
- C.
Decreased acid secretion - increased gastrin
- D.
Decreased acid secretion - Unchanged gastrin
- 3.
- A.
After a meal high in fat
- B.
After a meal high in Protein
- C.
After a meal high in starch
- D.
In between meals
- 4.
- A.
An increased acid secretory response to cephalic stimuli e.g. site and taste of food
- B.
A decreased release of gastrin in response to digestion protein
- C.
A decreased acid secretory response to distension of the stomach
- D.
An increased release of somatostatin
- E.
An increased acid secretory response to histamine
- 5.
- A.
No effect on the volume of gastric secretion
- B.
An Increased concentration of H+ in the gastric secretion
- C.
A decreased concentration of Na+ in the gastric secretion
- D.
An increase in the H+ concentration of the portal vein blood
- E.
A depolarization of the potential difference across the stomach
- 6.
- A.
Proton pump inhibition
- B.
Prostaglandin synthesis inhibition
- C.
Metabolic products of Helicobacter Pylori, such as ammonia
- D.
Acetylcholine release
- E.
Histamine (H2 receptor) stimulation
- 7.
- A.
The Volume of the parietal component increases
- B.
The concentration of H+ being secreted by the parietal cells increases
- C.
The volume of the non-parietal component decreases
- D.
The secretion of Na+ is inhibited
- E.
The secretion becomes hypertonic
- 8.In a laboratory experiment, the pH of the gastric antrum was reduced in the presence of amino - acids. The plasma gastrin level was determined and found to be lower than when the same amount of amino acids were given at a more alkaline pH. Increases in which of the following chemical signals mediates the reduced gastrin secretion at increased H+ concentration?
- A.
Gastrin Releasing Peptide
- B.
Histamine
- C.
Secretin
- D.
Somatostatin
- 9.The gastric intraluminal pressure was measured after introduction of differing volumes of a test meal. For any given volume of meal what would be the effect of vagotomy on the pressure recorded?
- A.
Decreased
- B.
Increased
- C.
Unchanged
- 10.
- A.
Vasoactive intestinal polypeptide
- B.
Nitric oxide
- C.
Substance P
- D.
Gastrin Releasing Peptide
- E.
Norepinepherine
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