In a reflex such as the "knee jerk" or patellar reflex,the efferent signal travels through the:

Question

Quizplus · Accepted Answer

The efferent signal in the knee jerk reflex travels through the motor neuron, which stimulates the contraction of the quadriceps muscle and causes the knee to extend. The sensory neuron detects the stimulus (tapping the patellar tendon), and the signal then travels to the spinal cord, where it is processed by an interneuron before the signal is sent to the motor neuron. However, the specific question asks for the pathway of the efferent signal, which is only through the motor neuron.

In a Reflex Such as the "Knee Jerk" or Patellar