The Sensory Input for the Crossed Extensor Reflex Originates From

Question

The sensory input for the crossed extensor reflex originates from
A) Pain receptors in the contralateral skin
B) Contralateral Golgi tendon organ
C) Ipsilateral Merkel’s disks
D) Pacinian corpuscles
E) Ipsilateral muscle spindles

Accepted Answer

The crossed extensor reflex involves a response to pain stimuli, where the sensory input originates from pain receptors in the skin of the limb opposite to the one being withdrawn from the painful stimulus. This allows for the coordination of a compensatory extension of the opposite limb to maintain balance.