Nokea
Cardiac glands of stomach, all true except:
- A. Present in the narrow band 10-40 mm wide around the esophageal orifice
- B. Lined by secreting cells that secrete mucous and few lysozymes
- C. Few parietal cells for HCL secretion and some enteroendocrine cells that secrete gastrin.
- D. Pits are relatively deep, occupying one half of the thickness of the mucosa
Correct Answer: D
Rationale: Cardiac gland pits are shallow, not deep, occupying less than half the mucosal thickness, unlike fundic glands.
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How many nephrons are found in each kidney?
- A. approximately one hundred
- B. approximately one thousand
- C. approximately one million
- D. approximately ten million
Correct Answer: C
Rationale: Each kidney contains about one million nephrons, the functional units for filtration.
Lipase is the enzyme that catalyses the breakdown of triacylglycerol into:
- A. Amino acids
- B. Lipids
- C. Fatty acids and glycerol
- D. Simple sugars
Correct Answer: C
Rationale: Lipase breaks down triacylglycerols into fatty acids and glycerol, aiding in the digestion and absorption of fats.
Succus entericus is secreted by-
- A. Gastric glands
- B. Islets of Langerhans
- C. Crypts of Lieberkuhn & Brunner's gland
- D. Goblet cells
Correct Answer: C
Rationale: Succus entericus is secreted by Crypts of Lieberkuhn and Brunner's glands.
A carbohydrate splitting enzyme is secreted by -
- A. Liver
- B. Zymogen cells of gastric glands
- C. Spleen
- D. Crypts of Lieberkuhn
Correct Answer: D
Rationale: Crypts of Lieberkuhn secrete enzymes like maltase that split carbohydrates.
A client with an elevated amylase level asks the nurse about the altered value. The nurse bases a response on knowledge that amylase:
- A. Is an enzyme from the pancreas needed for carbohydrate digestion
- B. Plays no significant role in physiological processes
- C. Is an enzyme from the pancreas needed for fat digestion
- D. Is an enzyme from the pancreas that is the major component of bile
Correct Answer: A
Rationale: Amylase, produced by the pancreas, digests carbohydrates into sugars.