The afferent neuron in the knee-extension reflex is the:

Question

Quizplus · Accepted Answer

The knee-extension reflex involves the activation of muscle stretch receptor sensory neurons, which detect the stretch in the quadriceps muscle when the knee is hit with a reflex hammer. This activates a reflex arc involving spinal interneurons and extensor muscle motor neurons, resulting in contraction of the quadriceps muscle and extension of the knee joint. Flexor muscle motor neurons are not involved in the knee-extension reflex.

The Afferent Neuron in the Knee-Extension Reflex Is The