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Structure of a Nerve MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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Afferent nerve fiber carries impulses from
All spinal nerves are
Concepts Covered - 1
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.
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