PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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axon
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dendrite
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myelin
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Node of Ranvier
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Detailed explanation-1: -The axon is a single protoplasmic fiber that extends from the cell body . It is the longest part of the neuron which conducts impulses away from the cell body. They have vesicles containing neurotransmitters at their axon terminals .
Detailed explanation-2: -Axon or nerve fibre: A long, thin fibre that extends from the nerve cell body. It branches at its tips to end in synaptic terminals that are marked by swellings called synaptic knobs. Many axons happen to be insulated by a fatty myelin sheath, which is formed by cells called Schwann cells.
Detailed explanation-3: -The name of the neuron fiber that carries impulses towards the cell body is dendrites. Dendrites are actually extensions to the cell body.
Detailed explanation-4: -Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.