Is it B A D Sound, when entering the cochlea A. Squeezes on the Scala media caus

Question

Is it B A D Sound, when entering the cochlea A. Squeezes on the Scala media causing the hair cells to be pushed up and down where there is sympathetic resonance cells are residing mechanoreceptors in the Scala Tympani. B. Causes the Perilymph to rush by the Copulata C. Causes the stirrup to compress the oval window where the hair D. Cause direct compression and rarefaction of auditory The Vestibule is the accessory organ for A. Hearing B. Dynamic equilibrium C. Static equilibrium D. Voice The receptor cells for static equilibrium are A. Gustatory cells B. Hair cells C. Pigmented epithelium D. Perilymph

Explanation / Answer

1.sound when etering into the cochlea, causes perilymph to rush by the copulata.

movement of footplate of stapes against ovalwindow causes movement of perilymph in scala vestibuli this fluid doesn't travel all the way to oval window to round window. it immediately hit the vestiular membrane of the oval window. thus movement of fluid in scala media,since the v. membrane is flexible.

2.the vestibule is the accesory organ for hearing. mainly it maintains the static equilibrium and posture.

3.receptor cells for static equilibrium are Hair cells these are the proprioceptors . situated in the semicircular canals, stimulated by movement of endolyph.

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