Nokea
Lamina propria of hard palate is formed by:
- A. Loose areolar connective tissue.
- B. Adipose tissue
- C. Periostium of the bone above
- D. Mucoid connective tissue.
Correct Answer: C
Rationale: The lamina propria of the hard palate is directly continuous with the periosteum of the underlying bone, providing a firm attachment. Loose areolar tissue is more typical in softer mucosal areas.
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Secondary papilla has separate epith. Cap in:
- A. Filiform papilla.
- B. Fungiform papilla.
- C. Foliate papilla.
- D. Circumvallate papilla.
Correct Answer: A
Rationale: Filiform papillae have secondary papillae with separate epithelial caps extending from the primary papillae, unlike other papillae types.
A dysfunction of the parietal cells of gastric glands would result in a decreased production of which two of the following?
- A. mucus
- B. pepsinogen
- C. hydrochloric acid
- D. pepsin
Correct Answer: C
Rationale: Parietal cells secrete hydrochloric acid and intrinsic factor.
(Gustatory) sensory cells of taste buds, all true except:
- A. They have pale cytoplasm and darkly stained oval nuclei.
- B. Their apical surfaces contain long microvilli embedded in amorphous glycosaminoglycan material secreted by supporting cells
- C. Are peripheral in position
- D. Their basal parts are connected to the afferent nerve fibers.
Correct Answer: C
Rationale: Gustatory cells are centrally located within the taste bud, surrounded by supporting cells, not peripheral.
A dysfunction of the parietal cells of gastric glands would result in a decreased production of which two of the following?
- A. mucus
- B. pepsinogen
- C. hydrochloric acid
- D. pepsin
Correct Answer: C
Rationale: Parietal cells secrete hydrochloric acid and intrinsic factor.
Absorption of fat occurs through the process of
- A. Active transport
- B. Facilitated transport
- C. Osmosis
- D. Simple diffusion
Correct Answer: D
Rationale: Fats, emulsified into micelles, are absorbed via simple diffusion into lacteals.