Sitting cross legged in a chair, and someone hits the top of your leg softly (just below the knee, with the side of their hand). Your leg should kick out immediately demonstrating the patellar reflex.
what is your reflex arc of stimulus and response?
The reflex arc for the patellar reflex is as follows:
1. Stimulus: The hit on the top of the leg just below the knee with the side of the hand.
2. Sensory receptor: The sensory receptor is the muscle spindles located in the quadriceps muscle of the thigh.
3. Sensory neuron: The sensory neuron carries the sensory input from the muscle spindles to the spinal cord.
4. Interneuron: In the spinal cord, the sensory neuron synapses with an interneuron.
5. Motor neuron: The interneuron then sends a signal to the motor neuron, which carries the response signal back to the quadriceps muscle.
6. Effector: The response is the contraction of the quadriceps muscle, causing the leg to kick out.