The correct option is C An aperture in between two scalae of cochlea of mammalHelicotrema is #160;a narrow slit at the apex of the cochlea, where the two cana ...

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Standard XII

Biology

Structural Organisation in Animals

Helicotrema i...

Question

Helicotrema is

An aquatic mammal

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An aperture in between the III and IV ventricle of brain

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An aperture in between two scalae of cochlea of mammal

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A disease of internal ear

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Solution

The correct option is C An aperture in between two scalae of cochlea of mammal
Helicotrema is a narrow slit at the apex of the cochlea, where the two canals of the cochlear duct, the scala vestibuli and the scala tympani, communicate. It is the main component of the cochlear apex. The hair cells near this area best detect low frequency sounds.

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