Which of the following nerves arises from organ of Corti? from B

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

What is diapedesis?

  • A kind of amoeboid movement.

  • The process of filtration of urea in kidney.

  • A type of locomotion found in Hydra

  • Migration of WBCs into the tissue spaces from blood capillaries


2.

Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness?

  • Morphine

  • Valium

  • Amphetamines

  • Hashish


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3.

Which of the following nerves arises from organ of Corti?

  • Olfactory nerve

  • Cochlear nerve

  • Abducens nerve

  • None of these


B.

Cochlear nerve

The organ of Corti consists of outer hair cells, inner hair cells, inner pillar cells, outer pillar cells, tunnel of Corti, phalangeal cells (cells of Deiters), cells of Hensen and cells of Claudius. The sensory hair project from the outer ends of the hair cells into the scala media, while from the inner end of the cells nerve fibres arise, which unite to form the cochlear nerve.


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4.

Intermediate host is absent in the infection of

  • Plamosdium

  • Trypanosoma

  • Entamoeba

  • Filarial worm


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5.

Which one feature is common to leech, cockroach and scorpion?

  • Nephridia

  • Ventral nerve cord

  • Cephalization

  • Antennae


6.

The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

  • squamous epithelium

  • columnar epithelium

  • ciliated epithelium

  • cuboidal epithelium


7.

Which one of the following is a sesamoid bone?

  • Pelvis

  • Patella

  • Pterygoid

  • Pectoral girdle


8.

Respiration is controlled by

  • medulla oblongata

  • cerebellum

  • hypothalamus

  • cerebrum


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9.

Duodenum has characteristic Brunner's gland which secretes two hormones called

  • prolactin, parathormone

  • secretin, cholecystokinin

  • enterocrinin, duocrinin

  • gastrin, enterogastrone


10.

Which of the following is the characteristic of PS-I?

  • It is active only upto 680 nm of light.

  • The reaction centre of PS- I is P680.

  • PS- I is reduced by the electrons released in photolysis of water.

  • PS-I is involved in non-cyclic photophosphorylation.


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