Substance B Is Synthesized in Neurons, Travels Through Gap Junctions

question 79

Multiple Choice

Substance B is synthesized in neurons, travels through gap junctions, and triggers the transduction of an electrochemical signal. This is an example of ____.

• A) autocrine signaling
• B) paracrine signaling
• C) long-distance signaling
• D) local signaling
• E) communication by direct contact

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Definitions:

Stomach

An organ in the digestive system that secretes acid and enzymes to digest food before it moves into the small intestine.

Conditioned Stimulus

A formerly neutral signal that, once linked with an unconditioned stimulus, ultimately leads to eliciting a conditioned response.

Unlearned Reaction

An instinctive response to a stimulus that does not require previous experience or learning.

Reflexive Response

An automatic reaction to a specific stimulus without conscious thought, often as a protective mechanism.