Preganglionic Fibers of the Autonomic Efferent Pathway Are _________ and Secrete

question 25

Multiple Choice

Preganglionic fibers of the autonomic efferent pathway are _________ and secrete __________.

• A) myelinated;norepinephrine (NE)
• B) myelinated;acetylcholine (ACh)
• C) myelinated;acetylcholine (ACh)and norepinephrine(NE)
• D) unmyelinated;acetylcholine (ACh)
• E) unmyelinated;norepinephrine(NE)

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Definitions:

Categorization

The process by which ideas and objects are recognized, differentiated, and understood.

Spreading Activation

A model of how information is retrieved in the brain, suggesting that spreading activation from one concept in a network triggers the retrieval of related concepts.

Discriminative Stimulus

A stimulus in the presence of which a particular response is reinforced, helping to differentiate it from other stimuli where the response would not be reinforced.

Operant Conditioning

A learning process in which the likelihood of a behavior is increased or decreased through reinforcement or punishment.