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Which of these structures are not present in the outer ear?

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in Biology – Class 11 by (272k points)
Which of these structures are not present in the outer ear?

(a) Pinna

(b) Meatus

(c) Cochlea

(d) Tympanic membrane

The question was posed to me in semester exam.

Question is taken from Neural Control and Coordination topic in portion Neural Control and Coordination of Biology – Class 11

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Correct choice is (c) Cochlea

For explanation I would say: The ear is divided into three parts- the outer ear, the middle ear and the inner ear. The outer ear consists of the pinna, the external auditory meatus or auditory canal and the tympanic membrane.

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