What are the major events that occur in the patellar (knee-jerk) reflex, from striking of the patellar ligament to the resulting response.
The quadriceps femoris is stretched...
Stimulating strectch receptors (muscle spindals) within the muscle...
As a result, impulses pass along sensory neurons into the spinal cord and synapse with a motor neuron...
Motor impulses travel out the cord on nerve fibers that lead to the quadriceps femoris...
Muscle fibers contract, and the leg is extended at the knee joint...