Multiple Choice Questions

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Large number of processes that project from the apical part of each hair cell of the organ of Corti is called

  • Otolith organ

  • Stereocilia

  • Crista ampullaris

  • Utricle

  • Utricle


B.

Stereocilia

Organ of corti is a structure located on the basilar membrane which contains hair cells that act as auditory receptors. The hair cells are present in rows on the internal side of the organ of corti. The basal end of the hair cell is in close contact with the afferent none fibres. A large number of processes called stereocilia are projected from the apical part of each hair cell. Above the rows of the hair cells is a their elastic membrane called tectorial membrane.


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The body temperature regulatory centre in the brain is

  • cerebellum

  • corpus callosum

  • hypothalamus

  • hippocampus

  • hippocampus


The anterior portion of the sclera is called

  • Lens

  • Iris

  • Pupil

  • Ciliary body

  • Ciliary body


The projecting ridge in ampulla of semi-circular canals in ear is called

  • Succus entericus

  • Maccula

  • Otolith

  • Crista ampullaris

  • Crista ampullaris


Choose the wrong statement regarding human ear

  • The stapes is attached to the tympanic membrane

  • The Eustachian tube connects the middle ear cavity with the pharynx

  • The middle ear contains three ossicles

  • The space within the cochlea called scala media is filled with Endolymph

  • The space within the cochlea called scala media is filled with Endolymph


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Anaerobic breakdown of glycogen due to repeated activation of muscles leads to the accumulation of

  • uric acid

  • phenylalanine

  • lactic acid

  • glutamic acid

  • glutamic acid


The visible coloured portion of the eye is

  • Retina

  • Iris

  • Pupil

  • Choroid

  • Choroid


Read the statements about human neural system and find the wrong one

  • The CNS includes the brain and the spinal cord

  • The PNS is divided into somatic and autonomic neural system

  • The somatic neural system is classified into sympathetic and parasympathetic neural system

  • The autonomic neural system transmits impulses from the CNS to the involuntary organs and smooth muscles

  • The autonomic neural system transmits impulses from the CNS to the involuntary organs and smooth muscles


Which part of the brain is responsible for thermoregulation?

  • Hypothalamus

  • Corpus callosum

  • Medulla oblongata

  • Cerebrum


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Which of the following statements is correct?

  • Cornea consists of dense connective tissue of elastin and can repair itself.

  • Cornea is convex, transparent layer which is highly vascularised.

  • Cornea consists of dense matrix of collagen and is the most sensitive portion the eye.

  • Cornea is an external, transparent and protective proteinacious covering of the eye-ball.


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