what is nerve impulse state the direction followed by a nerve impulse while travelling in the body of an organism
Answers
A nerve impulse is an electrical signal along the dendrites through which numerous nerve cells called neurons communicate with one another.
The transfer of a nerve impulse along a neuron from one end to the other occurs as a result of electrical changes across the membrane of the neuron. The membrane of an unstimulated neuron is polarized. Polarization occurs by maintaining an excess of sodium ions (Na +) on the outside and an excess of potassium ions (K +) on the inside.
Nerve impulse is the way by which the neurons communicate with each other.
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.
The ions that are moving across these membranes allow the nerve impulse to move along the nerve cells.