Question

Describe the general scheme of how a nerve impulse reaches the muscle cell or glands in human body

Answer 1

On reaching the axonal end, it causes the nerve endings to release a chemical which diffuses across a synapse and stimulates the dendrites of adjacent neuron, then to their cell body to be carried along the axon. In this way, the electrical signal reaches the brain or spinal cord.

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Answer 2

For every action that humans conduct it is driven by the nerve impulses, that reach the brain and from there action is sent to the glands.  

Explanation:

• The nerve impulse effectively and efficiently moves across the body and reaches the end brush area of the axons.
• Here the fibres obtain the impulse and start the release of a number of chemicals that let the impulse follow across the synaptic space and to the brain.
• When the impulse reaches the muscle cells then the latter contract to release mechanical energy. The space between the muscle fibre and the nerve fibre is known as the endplate of the motor.

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