Are reflexes different to reactions? Yes. An example of a reflex is when someone taps the knee (patella) tendon softly with a mallet. Your knee lurches forward and your brain has no control over its ...

The most familiar reflex is straightening your knee when a healthcare provider taps on the tendon below your kneecap with a reflex hammer. A stimulus (the hammer) causes a signal to be sent via a ...

In patients with knee osteoarthritis (OA), pain and dysfunction cause a reflex inhibition on the quadriceps femoral muscle, and quadriceps weakness could accelerate damage to knee cartilage.