Nokea
Absorption of digested food chiefly occurs in-
- A. Stomach
- B. Colon
- C. Small Intestine
- D. Large Intestine
Correct Answer: C
Rationale: The small intestine is the main site for nutrient absorption.
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(Auerbach's) plexus found in:
- A. Muscularis externa
- B. Submucosa
- C. Mucosa
- D. Serosa
Correct Answer: A
Rationale: Auerbach's plexus is located between the circular and longitudinal layers of the muscularis externa, controlling gut motility.
Which of the following hormones is responsible for stimulating gallbladder contraction and the release of bile into the small intestine during the intestinal phase of digestion?
- A. Cholecystokinin (CCK)
- B. Secretin
- C. Gastrin
- D. Glucagon
Correct Answer: A
Rationale: CCK, released in response to fats in the duodenum, stimulates gallbladder contraction and bile release for fat digestion.
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.
Centro acinar cells, all true except:
- A. Beginning of pancreatic duct system.
- B. Secrete bicarbonate ion (with intercalated ducts)
- C. Its secretion is controlled by secretin hormone
- D. Beginning of biliary duct system
Correct Answer: D
Rationale: Centroacinar cells are part of the pancreatic exocrine duct system, not the biliary system, which involves bile ducts.
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.