The doctor taps your leg just below your knee to test your reflexes. Your leg swings out at about the same time you perceive that your leg was tapped because of a
A) diverging circuit
B) converging circuit
C) reverberating circuit
D) parallel after-discharge circuit

Question

Quizplus · Accepted Answer

A diverging circuit is responsible for the quick reflex action seen in response to a stimulus such as tapping the knee. The sensory neuron that detects the tap sends a signal to the spinal cord, which then sends out multiple motor neuron signals to various muscles, causing a quick contraction and resulting in the leg swing.

The Doctor Taps Your Leg Just Below Your Knee to Test