Nokea
The following cells are involved in lipid digestion & absorption EXCEPT:
- A. Parotid acini
- B. Liver cells (hepatocytes)
- C. Pancreatic acini
- D. Chief cells of fundic glands
Correct Answer: A
Rationale: Parotid acini produce saliva, which begins carbohydrate digestion, not lipid digestion; hepatocytes and pancreatic acini produce bile and lipase for lipids.
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Crypts of Lieberkuhn are present in :-
- A. Intestine
- B. Stomach
- C. Oesophagus
- D. All of these
Correct Answer: A
Rationale: Crypts of Lieberkuhn are found in the small and large intestines.
Endothelial cells of liver sinusoids, the following is true except:
- A. Lie on a discontinuous basal lamina
- B. Separated from hepatocytes by space of Disse
- C. The underlying space of Disse contain red blood cells
- D. The fenestra on its surface are collected at areas called sieve plates
Correct Answer: C
Rationale: The space of Disse contains plasma and microvilli, not red blood cells, which remain in the sinusoidal lumen.
Dietary fibres are very much required in our daily food, so as to?
- A. To provide extra protein
- B. To balance the insulin secreted by pancreas
- C. To help our body get rid of undigested food
- D. To decrease tiredness
Correct Answer: C
Rationale: Dietary fiber aids in digestion by adding bulk to stool and helping the body eliminate undigested food, promoting regular bowel movements.
Peristalsis moves food material:
- A. in the stomach and small intestine only
- B. in the small and large intestines only
- C. in the stomach and small and large intestines only
- D. from the pharynx to the anal canal
Correct Answer: D
Rationale: Peristalsis is a wave-like muscle contraction that moves food material through the entire gastrointestinal tract.
Based on knowledge of the pancreas's role in digestion, what substance produced by the pancreas may be required as a supplement for long-term health management after its surgical removal?
- A. Pancreatic enzymes
- B. Vitamin B12
- C. Gastrin
- D. Bile salts
Correct Answer: A
Rationale: Pancreatic enzyme supplements are needed post-pancreatectomy to aid digestion.