Oral Histology

321. Main function of salivary duct is_______________?

A. To convey the saliva secreted by the terminal secretory units to oral cavity
B. Antibacterial action by secreting lysoenzymes and lactoferrin
C. Synthesis of secretory glycoproteins by Kallidrein an enzyme in striated duct cells
D. None of the above
✅ The correct answer is option A. To convey the saliva secreted by the terminal secretory units to oral cavity.

322. Bone at forming stage has_________________?

A. Osteoclasts, osteoblasts, osteoid
B. Odontoblasts & megakaryocyte
C. Megakaryocytes, osteoblasts, osteoclasts
D. None of the above
✅ The correct answer is option A. Osteoclasts, osteoblasts, osteoid.

323. Calcium content of lamina dura is______________?

A. More than the other parts of alveolar bone
B. Less than the other parts of alveolar bone
C. Same as in other parts of alveolar bone
D. Less than the cementum
✅ The correct answer is option A. More than the other parts of alveolar bone.

329. Matrix vesicles_______________?

A. Are found in mantle dentin
B. Contain collagen
C. Produce alkaline phosphatase
D. Inhibit mineralization
✅ The correct answer is option A. Are found in mantle dentin.

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