Group B Nerve fibers are situated in:
Correct Answer: Preganglionic autonomic fibers
Description: Ans. is 'c' is Preganglionic autonomic fibres Nerve fiber types in mammalian nerve:Fiber Type AFunctionFiber Diameter (mm)Conduction Velocity (m/s)alphaProprioception; somatic motor*12-20(Max.)* 70-120betaTouch, pressure*5-1230-70gammaMotor to muscle spindles*3-615-30deltaPain, cold, touch*2-512-30BPreganglionic autonomic*<33-15C Dorsal rootPain, temperature, some mechanoreceptor, reflex responses0.4-1.20.5-2Sympathetic*Postganglionic sympathetic0.3-1.30.7-2.3* A and B fibres are myelinated; C fibres are unmyelinated.
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