Nokea
What statement is wrong about bile?
- A. It is necessary for fat digestion
- B. It is stored in the gall bladder
- C. It is important only for normal digestion of sugar
- D. It activates lipase
Correct Answer: C
Rationale: Bile is not involved in sugar digestion; it emulsifies fats for digestion.
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Based on knowledge of the location of the pancreas, how should the student explain the location of the surgical incision?
- A. Upper abdomen, behind the stomach
- B. Right lower quadrant
- C. Left lower quadrant
- D. Right upper quadrant
Correct Answer: A
Rationale: The pancreas is retroperitoneal, located in the upper abdomen behind the stomach.
Which of the following combinations will lead to the highest level of acid secretion through potentiation? (Potentiation refers to a post-receptor interaction where the response obtained is greater than the sum of each individual agent acting alone.)
- A. Vagal input, histamine, gastrin
- B. Vagal input, histamine, secretin
- C. Histamine, gastrin, secretin
- D. Gastrin, vagal input, secretin
Correct Answer: A
Rationale: Vagal input, histamine, and gastrin all stimulate parietal cells synergistically (potentiation), maximizing acid secretion, while secretin inhibits it.
The end product of digestion of starch which is absorbed into the bloodstream is:
- A. amino acid
- B. fatty acid
- C. glucose
- D. sucrose
Correct Answer: C
Rationale: Starch is broken down into glucose by enzymes like amylase and maltase, which is then absorbed into the bloodstream.
The glucose is converted into glycogen in liver and stored in :
- A. Liver
- B. Liver and muscles
- C. Liver and spleen
- D. Spleen and muscles
Correct Answer: B
Rationale: Glucose is stored as glycogen in both the liver and skeletal muscles.
Which of the following statements are true about the Pancreatic juice?
- A. Pancreatic juice is acidic.
- B. Pancreatic juice is alkaline.
- C. Pancreatic juice is neutral.
- D. All of the above.
Correct Answer: B
Rationale: Pancreatic juice is alkaline due to its bicarbonate content, which neutralizes the acidic chyme entering the duodenum.