Nokea
Out of four layers of alimentary canal, which one forms villi, (finger-like projection)?
- A. Serosa
- B. Mucosa
- C. Submucosa
- D. Muscularis
Correct Answer: B
Rationale: The mucosa layer forms villi, increasing the surface area for absorption in the small intestine.
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Alcohol causes dehydration. How?
- A. Stimulates ADH production
- B. Replaces water in the body
- C. Makes you too drunk to drink water
- D. Inhibits ADH production
Correct Answer: D
Rationale: Alcohol inhibits ADH, reducing water reabsorption and increasing urine output, leading to dehydration.
Adenoids are enlarged:
- A. Palatine tonsil
- B. Pharyngeal tonsil
- C. Lingual tonsil
- D. Laryngeal tonsil
Correct Answer: B
Rationale: Adenoids refer to the enlarged pharyngeal tonsil, located in the nasopharynx, which can obstruct breathing when hypertrophied.
What happens during defecation?
- A. Food is chewed
- B. Nutrients are absorbed
- C. Chyme is formed
- D. Undigested waste is expelled
Correct Answer: D
Rationale: Defecation is the final stage where undigested waste (feces) is eliminated via the anus.
Functions of the Tongue papillae include the following except:
- A. The filiform papillae contain nerve endings specialized for touch.
- B. Enables animals in licking layers of solids and semisolids material.
- C. Most Fungiform and all the circumvallate papillae contain taste buds
- D. Von Ebner glands important in salivary secretion
Correct Answer: D
Rationale: Von Ebner's glands (serous glands) are associated with circumvallate papillae and aid in taste perception by secreting fluid, not general salivary secretion.
The enzymes present in pancreatic juice are
- A. Amylase, Trypsinogen, Peptidase, Rennin
- B. Trypsinogen, Lipase, Amylase, Procarboxypeptidase
- C. Peptidase, Pepsin, Amylase, Rennin
- D. Maltase, Amylase, Trypsinogen, Pepsin
Correct Answer: B
Rationale: Pancreatic juice contains amylase, lipase, trypsinogen, and procarboxypeptidase for digesting carbohydrates, fats, and proteins.