Nokea
A set of permanent teeth contains:
- A. 20 teeth
- B. 30 teeth
- C. 32 teeth
- D. 24 teeth
Correct Answer: C
Rationale: An adult human has 32 permanent teeth.
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Which division of the Enteric Nervous System is most likely to be stimulated by a pH change in the chyme?
- A. Submucosal Plexus (Meissner plexus)
- B. Myenteric Plexus (Auerbach Plexus)
- C. Both
- D. Neither
Correct Answer: A
Rationale: The submucosal plexus regulates secretions and senses luminal pH changes, responding to chyme acidity.
Which of the following enzymes formed in the pancreas aids in protein digestion?
- A. Amylase
- B. Lipase
- C. Trypsinogen
- D. Trypsin
Correct Answer: D
Rationale: Trypsin, activated from trypsinogen, is a pancreatic enzyme that digests proteins.
Which structure produces a liquid called chyme to help with the digestive process?
- A. 3
- B. 2
- C. 1
- D. 4
Correct Answer: A
Rationale: Structure 3 (stomach) produces chyme by mixing food with gastric juices. (Assuming typical diagram numbering; stomach is often 3.)
Which of the following structures is a common passageway for both food and air?
- A. Nasopharynx
- B. Oropharynx
- C. Esophagus
- D. Trachea
Correct Answer: B
Rationale: The oropharynx serves as a common pathway for food (to the esophagus) and air (to the laryngopharynx and trachea), unlike the other options.
What is the major function of the podocyte?
- A. To keep large molecules out of the nephron
- B. To strengthen the glomerular capillaries
- C. To act as macrophages in the kidney
- D. To detect chemical changes in the blood
Correct Answer: A
Rationale: Podocytes form a filtration barrier in Bowman's capsule, preventing large molecules from entering the filtrate.