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ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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What determines the speed of impulse conduction and type of pain perceived?

Nerve trunk
Restrictor
Fiber diameter
Nociceptors

Explanation

Answer: C - Fiber diameter determines the speed of impulse conduction and the type of pain perceived. “A” fibers are 3 - 20 myelinated microns with rapid conduction. “C” fibers are 0.5 - 1 nonmyelinated microns with slow conduction.

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