The knee jerk helps doctors know the your nervous system is healthy. If they tap the hammer thing and nothing happens, something is wrong with your body or they hit it in the wrong spot:)
The patellar reflex is a type of stretch reflex that involves tapping the patellar tendon to elicit a contraction of the quadriceps muscle and extension of the knee. This reflex helps to maintain balance and stability.
A reflex is an automatic or involuntary response to a stimulus, typically involving a sensory nerve and a motor nerve. It is a rapid and predictable reaction that helps protect the body from harm. Examples include the knee-jerk reflex and the pupillary reflex.
Stretch reflex that helps keep your knees from buckling
the knee-jerk reflex
knee jerk aka patellar reflex is an example of a stretch reflex
During the Achilles reflex test, you would expect to see plantar flexion of the foot, where the foot points downwards, in response to tapping the Achilles tendon. This reflex is a protective mechanism that helps maintain posture and balance in the lower extremities.
knee-jerk reflex
The statement "The patellar knee jerk reflex is controlled by the brain" is not correct. The patellar knee jerk reflex is actually a spinal reflex, meaning it does not involve the brain in its initial response.
Reflex
Patellar reflex is an involuntary, deep tendon and myotatic reflex
The knee-jerk reflex is a type of stretch reflex, which is a type of spinal reflex. It involves the stimulation of sensory neurons in the muscle spindles of the quadriceps muscle, leading to a quick contraction of the muscle in response to a sudden stretch.