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  • Which of the following nerves has both the motor and sensory neurons?  Option: 1 Trigeminal  <div class='

Which of the following nerves has both the motor and sensory neurons?

 

Option: 1

Trigeminal

 


Option: 2

Facial

 


Option: 3

Vagus

 


Option: 4

All of these


Answers (1)

best_answer
 

Structure of Nerve -

  • A nerve consists of a bundle of nerve fibres. This bundle is called fasciculi.
  • A nerve is surrounded by epineurium, a layer of connective tissue. 
  • A fasciculus is covered by perineurium which is connective tissue.
  • Inside the nerve, each nerve fibre is surrounded by endoneurium.
  • A nerve conveys information in the form of electrochemical impulses (known as nerve impulses or action potentials) carried by the individual neurons that make up the nerve.
  • These impulses are extremely fast, with some myelinated neurons conducting at speeds up to 120 m/s.
  • The impulses travel from one neuron to another by crossing a synapse, and the message is converted from electrical to chemical and then back to electrical.

Mixed nerves- These possess both sensory and motor nerve fibres. Trigeminal, facial, vagus, nerve etc are mixed nerves. 

Posted by

Rakesh

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