For a Brief Period of Time, Shortly After a Neural

question 70

Multiple Choice

For a brief period of time, shortly after a neural impulse has been triggered, a neuron is not excitable and cannot fire another impulse. This is called _.

• A) absolute refractory period
• B) graded potential
• C) action potential
• D) depolarization

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Definitions:

Neuroglial Cell

Neuroglial cells, commonly known as glial cells, support, protect, and maintain the homeostasis of the nervous system, playing roles in nutrient supply to neurons and damage repair.

Electrical Impulses

Rapid fluctuations of voltage across a membrane, used by neurons and muscle cells for communication and activation.

Sensory Organs

Parts of the body that receive and process sensory stimuli, such as the eyes, ears, nose, tongue, and skin.

Neurons

Specialized cells of the nervous system that transmit information through electrical and chemical signals, forming the basis of neural communication.