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Download MBBS Anatomy PPT 100 Organs Of Hearing And Equilibrium 2 Notes

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This post was last modified on 05 April 2022


The left bony labyrinth(Lateral aspect)

The left bony labyrinth (Interior Aspect)
The membranous labyrinth (blue) projected

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on to the bony labyrinth

The fundus of the left internal acoustic

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meatus
Saccular and Utricular maculae

A section of an ampul ary crest
Organ of Corti

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A simplified view of the innervation of the

organ of Corti

The principal activities of the peripheral

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auditory apparatus


Deafness(Conducting and Sensorineural)

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Blood Supply and Venous Drainage

? Labyrinthine Artery
? Stylomastoid branch of Posterior auricular/Occipital Artery

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Venous Drainage
? Superior petrosal or
? Transverse Sinus
Vestibulocochlear Nerve

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MCQs

Question:- Which of the following is the correct representation of

organ of Corti?

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a. Zona arcuata
b. Cuticular plate
c. Zona pectinata
d. Phalangeal process

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Question:- Which of the following is the correct regarding the

excitation of different regions of the cochlea by different sound

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frequencies from its base to apex?
a. Highest to lowest frequency
b. Lowest to highest frequency
c. Any frequency at any part
d. Middle, lowest and highest

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