511.palatine processes are derived from:
A.fronto- nasal process.
B.lateral nasal process.
C.3rd branchial arch.
D. maxillary processes.

512. Tongue begins to develop at:
A.6th w.i.u.
B. 11th w.i.u.
C.4th w.i.u.
D. 8th w.i.u.

513. Ossification center of maxilla arises between:
A.maxillary and mandibular nerves.
B.anterior superior alveolar nerve and infraorbital nerve.
C. posterior and middle superior alveolar nerves.
D. inferior alveolar and lingual nerves.

514. First branchial arch is supplied by:
A. facial nerve.
B. glossopharyngeal nerve.
C. hypoglossal nerve.
D. mandibular nerve.

515.The neural crest cells give rise to:
A. Bone, dentine and cartilage.
B.Enamel, dentine and bone.
C. Sensory cells, enamel and dentine.
D. Fibroblasts, pericytes and enamel.

516. Which of the following are derived from Meckel’s cartilage:
A. Mental ossicles, incus and malleous of the middle ear.
B.Lingula of the mandible and middle ear.
C.stylo-mandibular ligament.
D. All of the above.

517.The inferior parathyroid gland originates from :
A. First pharyngeal pouch.
B.First pharyngeal cleft.
C. Third pharyngeal pouch.
D. Fourth pharyngeal pouch.

518. The development of secondary palate begins from:
A. 3-4 W.I.U.
B. 4 -5 W.I.U.
C. 15-16 W.I.U.
D. 6-9 W.I.U.

519. The occipital somites myotomes give rise to
A. Muscles of mastication
B. Muscles of the lip.
C. Muscles of the tongue.
D. Muscles of cheek.

520.The malleus of inner ear originates from:
A. Condylar cartilage.
B. Coronoid cartilage.
C. Meckel’s cartilage.
D.None of the above.

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