Nokea
Posterior part of soft palate, hangs down in pharynx, called-
- A. Palatine
- B. Tonsils
- C. Velum Palati
- D. Jacobson's organ
Correct Answer: C
Rationale: The velum palati (uvula) is the posterior part of the soft palate that hangs down in the pharynx.
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Which part of the digestion process speeds up the break down of food?
- A. enzymes
- B. peristalsis
- C. villi
- D. bile
Correct Answer: A
Rationale: Enzymes are biological catalysts that accelerate the chemical breakdown of food.
Match each term with the correct description: produces enzymes
- A. rectum
- B. esophagus
- C. pancreas
- D. liver
Correct Answer: C
Rationale: The pancreas produces digestive enzymes that aid in breaking down food.
Which vitamin is produced by intestinal bacteria?
- A. B12
- B. A
- C. C
- D. D
Correct Answer: A
Rationale: Intestinal bacteria synthesize vitamin B12, which is absorbed in the ileum with intrinsic factor. Vitamins A, C, and D are not produced by gut bacteria.
What provides the luminal surface of the intestinal wall its characteristics?
- A. Smooth and slippery due to peritoneum
- B. Smooth and slippery due to mucus from epithelial cells
- C. Rough due to villi
- D. Dry due to serosa
Correct Answer: B
Rationale: The luminal surface is smooth and slippery due to mucus secreted by goblet cells in the mucosa, not the peritoneum, which is external.
Amylase is an example of a(n)
- A. accessory organ
- B. carbohydrate
- C. enzyme
- D. vitamin
Correct Answer: C
Rationale: Amylase is an enzyme that breaks down starches into sugars.