The Parasympathetic Nervous System Is Characterized by

question 25

Multiple Choice

The parasympathetic nervous system is characterized by

• A) the absence of preganglionic fibers.
• B) the absence of postganglionic axons.
• C) short postganglionic axons near the organs they innervate.
• D) short preganglionic axons near the spinal cord.
• E) long postganglionic axons.

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Definitions:

Axon

The long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body to other neurons or muscles.

Action Potential

A sudden, temporary reversal of the electrical charge across a neuron's plasma membrane, allowing neurons to transmit signals over long distances within the body.

Axon Hillock

The axon hillock is the part of a neuron that connects the cell body to the axon, playing a crucial role in the initiation of nerve impulses.

Magnitude

Magnitude typically refers to the size, extent, or dimension of an object or phenomenon, often quantified in terms of numerical values in various scientific fields.