Nokea
Concerning Circumvallate papilla the following is true EXCEPT:
- A. Most numerous type of the lingual papillae.
- B. Its sides carry about 250 taste buds.
- C. Has underlying Von Ebner's glands.
- D. Surrounded by circular groove.
Correct Answer: A
Rationale: Circumvallate papillae are the least numerous (about 8-12 in humans), not the most numerous, and they carry many taste buds with Von Ebner's glands.
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(Auerbach's) plexus found in:
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- 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 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.
Which of the following enzyme is secreted by pancreas -
- A. Maltase
- B. Trypsin
- C. Rennin
- D. Lactase
Correct Answer: B
Rationale: Trypsin, a proteolytic enzyme, is secreted by the pancreas.
Match: Carbohydrate
- A. major source of energy composed of carbon, hydrogen, and oxygen
- B. composed of amino acids
- C. made of glycerol and fatty acids
- D. used for insulation
Correct Answer: A
Rationale: Carbohydrates serve as the body's primary energy source and consist of carbon, hydrogen, and oxygen atoms.
Which listed substances are all broken down by the liver?
- A. alcohol, drugs, and progesterone
- B. drugs, adrenaline, and urea
- C. oestrogen, water, and drugs
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Correct Answer: D
Rationale: The liver metabolizes various substances including urea, alcohol, and drugs.