HYPERSENSITIVITY
CLASSICAL ALTERNATE AND LECTIN PATHWAYS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Activation of the ____ fibers is responsible for dentinal hypersensitivity
|
|
A-delta
|
|
|
A-beta fibers
|
|
|
C-fibers
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -A delta fibers have larger diameter axons, up to 5 uM in diameter. C fibers, however, are smaller, and may be up to 1 uM in diameter. This difference in axonal diameter also contributes to the difference in which signals are propagated. An action potential from a C fiber will fire faster than one from an A delta fiber.
Detailed explanation-2: -Type A fibers are the afferent fibers of nociceptors. A fibers carry information from peripheral mechanoreceptors and thermoreceptors to the dorsal horn of the spinal cord. This pathway describes the first-order neuron.
There is 1 question to complete.