Question

what is a nerve impulse ? state the direction followed by a nerve impulse while travelling in the body of an organisms ​

Answer 1

Nerve impulses may be described as electrical signals along the dendrites in order to produce a nerve sensation or potential of action. The nerve impulse travels down along the pathways of neurons just like electrical charges move along each of the neural cell membrane.

Answer 2

The descriptive about the nerve impulse is as follows:

Explanation:

• A nerve impulse can be defined as the electrical signal that travels along the axon of the neuron.
• There exists an electrical difference between the interior of the axon and with the surrounding just like a battery.
• When the nerve is in activated form, there exists a sudden change in the voltage across the wall of the axon, that develops due to the movement of the ions in and out of the neuron.
• This results in the trigger mechanisms of the generation of the wave of electrical activity that passes from the cell body to the axon and then finally to the synapse.
• The nerve impulse flow only in one direction. The dendrites receive the nerve impulse from other neuron and axon functions by transmitting the impulses to the other neuron receptor.

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