Multiple Choice Questions

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Scala vestibuli is connected with

  • fenestra rotundus

  • fenestra ovalis

  • scala tympani

  • scala media


C.

scala tympani

The vestibular duct or scala vestibuli is a perilymph-filled cavity inside the cochlea of the inner ear that conducts sound vibrations to the cochlear duct. It is separated from the cochlear duct by Reissner's membrane and extends from the vestibule of the ear to the helicotrema where it joins the tympanic duct.

The scala vestibuli and scala tympani are filled with perilymph. At the apex of cochlear duct (scala media), scala vestibuli and scala tympani communicate by a narrow junction called helicotrema.


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Short Answer Type

What is cochlear microphonics?


Multiple Choice Questions

Broca's area of speech is present in

  • frontal lobe

  • parietal lobe and partially in temporal lobe

  • temporal lobe

  • temporal and occipital lobe


Which statement is incorrect for ion-channels?

  • They are proteins

  • Movement through them is simple diffusion

  • Movement through them is from high to low concentration

  • All ions pass through the same type of channel


Short Answer Type

What is axon reflex?


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Multiple Choice Questions

In human, corpus callosum connects

  • the two optic lobes

  • bone and muscle

  • the two cerebral hemispheres

  • two lobes of pituitary gland


Which part of the human brain is largest

  • Cerebellum

  • Thalamus

  • Cerebrum

  • Medulla


Which of the following element is responsible for Minamata disease?

  • Hg

  • Pb

  • Cd

  • Fe


The friction between the eyelids and the cornea is avoided by the secretion of

  • lachrymal glands

  • conjunctiva and eyelids

  • hardarian glands

  • Meibomian glands


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Part of the brain concerned with the muscular movement is

  • cerebellum

  • thalamus

  • Hippocampus

  • temporal lobe of cerebrum


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