Nokea
Which of the following is not a source of protein?
- A. broccoli
- B. red meat
- C. beans
- D. rice
Correct Answer: A
Rationale: Broccoli contains some protein but is primarily a source of vitamins and fiber, not a primary protein source like meat or beans.
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Gastric lipase is secreted by -
- A. Stomach
- B. Pancreas
- C. Liver
- D. Ileum
Correct Answer: A
Rationale: Gastric lipase is secreted by the stomach to initiate fat digestion.
When administered intravenously, this hormone has the capability to initiate a phase of robust sequential contractions in the proximal duodenum, which gradually moves towards the cecum:
- A. Cholecystokinin (CCK)
- B. Gastrin
- C. Motilin
- D. Secretin
Correct Answer: C
Rationale: Motilin triggers the migrating motor complex, initiating strong contractions from the duodenum to the cecum during fasting.
What are the advantages of chewing food at the start of digestion?
- A. increasing surface area
- B. lubricating food
- C. making food soluble
- D. all of the above
Correct Answer: D
Rationale: Chewing increases the surface area for enzyme action, lubricates food with saliva, and helps dissolve food particles.
Esophagus, all true except:
- A. Muscular tube that conveys the ingested food from the pharynx to the stomach
- B. Esophagus shows longitudinal folds that help in its expansion during swallowing.
- C. Its muscularis mucosa is formed entirely of smooth muscles.
- D. Its mucosa have no glands in the entire length.
Correct Answer: D
Rationale: The esophageal mucosa contains mucous glands in the submucosa, especially in the upper and lower regions, not none along its length.
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.