We are, I trust, all but universally familiar with the knee jerk, or patellar, reflex. A doctor taps the patellar tendon with a rubber mallet, and our leg kicks forward in response. The reaction is ...

Injury to any of the muscles, bones, or ligaments of the knee can cause severe pain Not all knee complaints require orthopedic referral. This review of basic testing and exam techniques will help you ...

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 ...