PHYSIOLOGY
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a neural impulse
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a level of stimulation needed to trigger a neuron
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a period of brief resting pauce after a neuron has fired
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the junction between the axon and the dendrite
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Detailed explanation-1: -An action potential, also called a nerve impulse, is an electrical charge that travels along the membrane of a neuron. It can be generated when a neuron’s membrane potential is changed by chemical signals from a nearby cell.
Detailed explanation-2: -An action potential is a rapid sequence of changes in the voltage across a membrane. The membrane voltage, or potential, is determined at any time by the relative ratio of ions, extracellular to intracellular, and the permeability of each ion.
Detailed explanation-3: -This reverse polarity constitutes the nerve impulse. It is called the action potential because the positive charge then flows through the cytoplasm, activating sodium channels along the entire length of the nerve fibre.
Detailed explanation-4: -Conduction of Nerve Impulse. A nerve impulse is the electric signals that pass along the dendrites to generate a nerve impulse or an action potential. An action potential is due to the movement of ions in and out of the cell. It specifically involves sodium and potassium ions.
Detailed explanation-5: -The action potential, also referred to as a nerve impulse, is the electrical potential difference across the plasma membrane.