The Action Potential Is Best Defined As

question 290

Multiple Choice

The action potential is best defined as:

• A) the amount of serotonin that can cross the axon's membrane.
• B) the +3- to +7-volt capacity of a typical motor neuron.
• C) the ability of a motor neuron to either contract or relax a muscle group.
• D) a brief electrical impulse that transmits information along the axon of a neuron.

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Definitions:

Pituitary Gland

A pea-sized gland located at the base of the brain, often referred to as the "master gland," because it regulates several other hormone glands in the endocrine system.

Thalamus

A brain structure that acts as a principal relay station for sensory information, directing it to appropriate areas of the brain for processing.

Cortex

The outermost layer of the brain, involved in high-level functions such as sensory perception, thought, reasoning, and memory.

Smell

The sense by which odors are perceived, involving the detection of chemical stimuli by the olfactory system.