C-fibre
Quick Summary
A C-fiber is an unmyelinated nerve fiber, particularly found in the autonomic nervous system. These fibers are involved in transmitting sensory information, including pain and temperature. Specifically, C-fiber nociceptors are polymodal, meaning they respond to various types of stimuli, and are responsible for sensations like the burning feeling associated with cold pain. They play a role in how the brain processes thermal information and pain.12
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thermoreceptionThermoreceptive elements…receptors are innervated by unmyelinated C-fibres that conduct discharge activity very slowly, cold receptors are predominantly served by thinly myelinated A-fibres that conduct impulses more rapidly than C-fibres. (Thus, a blockade of peripheral nerve conduction by maintained pressure will first interrupt touch, then cold, then finally sensations of warmth and…
Read More…receptors are innervated by unmyelinated C-fibres that conduct discharge activity very slowly, cold receptors are predominantly served by thinly myelinated A-fibres that conduct impulses more rapidly than C-fibres. (Thus, a blockade of peripheral nerve conduction by maintained pressure will first interrupt touch, then cold, then finally sensations of warmth and…
Read More- thermoreceptionThermoreceptors and pain reception
…different types of sensory stimulation) C-fibre nociceptors that are responsible for the burning feeling of cold pain. The simultaneous warm and cool temperatures summate in the brain to reduce normal thermoreceptive activity, and this reduction unmasks (disinhibits) the cold-evoked polymodal nociceptive activity that is normally inhibited centrally by the thermoreceptive…
Read More…different types of sensory stimulation) C-fibre nociceptors that are responsible for the burning feeling of cold pain. The simultaneous warm and cool temperatures summate in the brain to reduce normal thermoreceptive activity, and this reduction unmasks (disinhibits) the cold-evoked polymodal nociceptive activity that is normally inhibited centrally by the thermoreceptive…
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