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Morphological and Anatomical Evidences

Ear ossicle, ...

Question

Ear ossicle, incus is a modified from of which of the following bone?

A

Jugal

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B

Articular

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C

Quadrate

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D

Hyomandibular

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Solution

The correct option is C Quadrate
Quadrate bone in the skull of bird or reptile is a squarish bone with which the jaw articulates, thought to be homologous with the incus of the middle in the mammals.
So, the correct answer is 'Quadrate'.

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