The patellar reflex

The patellar reflex

When the patellar tendon is lightly tapped, the extensor muscle stretches slightly.

01:12

Biology

Keywords

knee-jerk reflex, patellar reflex, reflex, knee, unconditioned reflex, spinal cord reflex, reflex testing, stimulus, motion, muscle tone, skeletal muscle, joint, spinal cord, quadriceps, receptor, reflex arc, kneecap, leg, experiment, neurology, biology

On-screen labels

The patellar reflex, Brainstem and spinal reflexes are, responsible for the movement, of the skeletal muscles., The patellar reflex is a spinal reflex of muscular origin., When the patellar tendon is lightly tapped,, the extensor muscle stretches slightly., The stimulus produced in the muscle, is transmitted to the spinal cord., The response to this stimulus is, the contraction of the extensor muscle, and the sudden kicking movement of the lower leg.
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