Multiple Choice Questions

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In motor neuron the impulse following in which direction?

  • In two direction

  • In one drection

  • In all direction

  • None of the above


A.

In two direction

Motor neurons are efferent neurons and are located in CNS. The impulse acts in two direction. It carry impulses from the brain and spinal cord to muscles or glands. hen a stimulus is received by a sensory neuron, the impulse (or message) is carried through fibrous extensions called dendrites to the cell body.


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Ivan Pavlov performed experiments on

  • origin of life

  • cardiac reflexes

  • simple reflexes

  • conditioned reflexes


From acrosome, which secretes

  • hyaluronic acid

  • hyaluronidase

  • TSH

  • fertilizin


Which of the following is not a mental disorder?

  • Epilepsy

  • Neurosis

  • Psychosis

  • Plague


Proximal and distal convoluted tubules are parts of a

  • nephron

  • oviduct

  • vas deferens

  • caecum


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Cranial nerve showing maximum branching is

  • trigeminal

  • vagus

  • optic

  • facial


In human eyes, colour perception is done by

  • rod cells only

  • cone cells only

  • Both (a) and (b)

  • choroid laver cells


During the conduction of nerve impulse, the action potential is the result of movement of

  • Na+ from intracellular fluid to extracellular fluid

  • Na+ from extracellular fluid to intracellular fluid

  • Na+ towards both directions

  • None of the above


Which are the longest cells in the body of man ?

  • Muscle cells of legs

  • Bone cells

  • Nerve cells

  • None of the above


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Which of the following nerve is purely motor nerve?

  • vagus

  • facial

  • abducens

  • trigeminal


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