The knee-jerk reflex, that sudden and involuntary extension of your lower leg when the area below your kneecap is tapped, ...

Pulling your hand away from a hot object, blinking because it's very bright or kicking when someone taps the tendon below your kneecap - these are all innate reflex actions. They happen rapidly, you ...

One of the most important functions of interneurons in the knee-jerk reflex is to mediate reciprocal inhibition. This process ensures that the contraction of the quadriceps muscle is accompanied by ...