In response to stepping on a nail, the crossed -extensor reflex causes
A) flexion of the leg opposite the side of receptor activation.
B) extension of the leg opposite the side of receptor activation.
C) extension of the arm on the side of receptor activation.
D) extension of the leg on the side of receptor activation.
E) flexion of the leg on the side of receptor activation.

Question

Quizplus · Accepted Answer

The crossed-extensor reflex involves the extension of the leg opposite the side of receptor activation to maintain balance while the affected leg is withdrawn from the stimulus. This reflex helps in distributing the body weight to the opposite leg to prevent falling.

In Response to Stepping on a Nail, the Crossed -Extensor