Explain the Two Types of Refractory Periods

question 71

Essay

Explain the two types of refractory periods.Explain how the relative refractory period can help determine the strength of the stimulus.

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Definitions:

Synaptic Cleft

The small gap between neurons, across which neurotransmitters move to transmit information.

Terminal Buttons

The small bulblike structures at the end of dendrites that release neurotransmitters and facilitate communication between neurons.

Cell Membrane

A biological membrane that separates the interior of all cells from the outside environment, controlling the movement of substances in and out of cells.

All-or-None Law

A principle stating that certain physiological responses will occur to their fullest extent once a stimulus reaches a threshold, without gradation in response.