Nokea
The nutrient that supplies bulk to help the movement of waste through the digestive system is
- A. protein
- B. vitamins
- C. minerals
- D. fibre
Correct Answer: D
Rationale: Fibre provides bulk and aids in the movement of waste through the digestive tract by promoting peristalsis.
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All about human tongue is true EXCEPT:
- A. Anterior 2/3 of Dorsal surface is covered by Parakeratinized epith.
- B. Post. 1/3 contain lingual tonsils.
- C. Its ventral surface has projections called lingual papilla.
- D. Contain skeletal muscle fibers arranged in 3 directions.
Correct Answer: C
Rationale: The ventral surface of the tongue is smooth and covered by non-keratinized stratified squamous epithelium, not lingual papillae, which are on the dorsal surface.
Which nerve is primarily responsible for the neural control of the gastric phase, including the stimulation of gastric secretions?
- A. Facial nerve
- B. Vagus nerve
- C. Glossopharyngeal nerve
- D. Spinal accessory nerve
Correct Answer: B
Rationale: The vagus nerve (cranial nerve X) is the primary nerve responsible for parasympathetic control of the stomach, stimulating gastric secretions and motility during the gastric phase.
All about vermilion zone (free red margin) of lip is true EXCEPT:
- A. Covered by modified mucous membrane
- B. The epith covering has clear keratin superficial layer.
- C. Show deep & numerous dermal papilla
- D. Show NO skin appendages.
Correct Answer: A
Rationale: The vermilion zone is covered by modified skin, not a mucous membrane, though it lacks skin appendages and has a thin keratin layer.
Submandibular gland following is true except:
- A. Has thick capsule & thin septa
- B. Formed mainly of serous acini
- C. Has no striated ducts
- D. Secrete 70% of salivary secretion
Correct Answer: C
Rationale: The submandibular gland has prominent striated ducts, like other major salivary glands.
Our food mainly contains-
- A. Carbohydrates
- B. Cellulose
- C. Sucrose
- D. Glucose
Correct Answer: A
Rationale: Carbohydrates are the primary component of most diets.