Which type of nerve fiber transmits deep somatic pain?

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Study for the MedScreening Exam 1. Review detailed explanations and multiple choice questions. Prepare for success!

Multiple Choice

Which type of nerve fiber transmits deep somatic pain?

Explanation:
Deep somatic pain is carried by slow, unmyelinated fibers (C fibers). These fibers conduct signals slowly, around 0.5–2 m/s, and produce a dull, aching, poorly localized sensation that can linger. In contrast, fast, sharp pain from superficial tissues is transmitted by myelinated A-delta fibers, which conduct more quickly and give a well-localized, pricking sensation. Deep structures like muscles and joints tend to produce diffuse, persistent pain, so the slow C fibers are the primary carriers.

Deep somatic pain is carried by slow, unmyelinated fibers (C fibers). These fibers conduct signals slowly, around 0.5–2 m/s, and produce a dull, aching, poorly localized sensation that can linger. In contrast, fast, sharp pain from superficial tissues is transmitted by myelinated A-delta fibers, which conduct more quickly and give a well-localized, pricking sensation. Deep structures like muscles and joints tend to produce diffuse, persistent pain, so the slow C fibers are the primary carriers.

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