1461. Haversion systems (osteons) are found primarily in the_________________?
A. Spongy bone
B. Periosteum
C. Alveolar bone proper
D. Endosteum
✅ The correct answer is option C. Alveolar bone proper.
Medical
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1462. IN occlusion, the teeth have______________?
A. Cusp – to – cusp contact
B. Edge- to – edge contact
C. Marginal contact
D. Surface – to- surface contact
✅ The correct answer is option D. Surface – to- surface contact.
1463. Synthesis of enamel matrix proteins occurs in the________________?
A. Outer enamel epithelium
B. Ameloblast
C. Stratum intermedium
D. Stratum granulosum
✅ The correct answer is option B. Ameloblast.
1464. Breathing ceases upon destruction of the___________________________?
A. Cerebrum
B. Medulla oblongata
C. Hypothalamus
D. Cerebellum
✅ The correct answer is option B. Medulla oblongata.
1465. Mesial concavity making the prognosis poor for a furcation involvement is present in_____________?
A. Maxillary canine
B. Maxillary 1st premolar
C. Mandibular 1st premolar
D. Maxillary 2nd premolar
✅ The correct answer is option B. Maxillary 1st premolar.
1466. Difference between mandibular and maxillary premolars is that in the mandibular premolars ?
A. The buccal and lingual cusps are more prominent
B. The lingual cusp is sharper and longer
C. The lingual surface rounded and less developed
D. The buccal surface is rounded and less developed
✅ The correct answer is option C. The lingual surface rounded and less developed.
1467. Wallenberg degeneration is seen in______________?
A. Proximal cut end of nerve with cell body
B. Distal cut end of nerve without cell body
C. Both the free ends of the cut nerve
D. All are true
✅ The correct answer is option B. Distal cut end of nerve without cell body.
1468. Normally, the rate of the heart beat in a human is determined by _________________?
A. The bundle of His
B. All cardiac muscle
C. The sinoatrial node
D. The cervical ganglion
✅ The correct answer is option C. The sinoatrial node.
1469. Of the total amount of saliva secreted by all the salivary glands, about 60% is secreted by the_____________?
A. Parotid glands
B. Sublingual glands
C. Submandibular glands
D. None of the above
✅ The correct answer is option C. Submandibular glands.
1470. The maxillary teeth which have single antagonist are__________?
A. Lateral incisors
B. Permanent canines
C. Permanent central incisors
D. Third molars
✅ The correct answer is option D. Third molars.