No, those are two different reflexes.
knee jerk
the knee-jerk reflex
The patellar ligament initiates the knee jerk reflex when tapped. When the patellar tendon is tapped just below the patella, the sensory neurons detect the sudden stretch and send an impulse to the spinal cord. This reflex causes the contraction of the quadriceps muscles, resulting in the extension of the leg.
When something like a hot object touches your hand, your receptors send impulses down the sensory neurone which then takes the impulses to the relay neurone (co-ordinator) which then sends the impulses to the motor neurone which goes in the opposite direction to an effector organ. This then reflexes your hand away from the hot object.
No
No, those are two different reflexes.
The reflexes that have one thing in common are the knee, ankle, plantar jerk, biceps, and triceps. They are all governed by reflex arcs in the spine.
The Jendrassik maneuver is one in which the reflexes of the knee joint are tested. The person in question clenches their teeth and puts their clenched fingers together. Often, the knee jerk reflex is bigger when doing the maneuver.
Their body reflexes automatically cause the leg, from the knee down, to jerk upwards.
The knee and elbow reflexes
It is a tomahawk-shaped rubber instrument used to test reflexes in order to determine if an individual's nerve reflexes are functioning properly. There is no specialized name for this instrument, though it is commonly referred to as a mallet.
If you have no knee jerk reflex, then there is something wrong neurologically with your spinal cord. Make sure you have absolutely NO reaction to even the hardest of pounds, not just slow reflexes.
knee jerk aka patellar reflex is an example of a stretch reflex
ImproveTheir are 4 types of reflexes:spinal reflex (knee jerk);cranial reflex (reading);somatic reflexes (involve contraction of skeletal muscles);autonomic (visceral) reflexes (involve responses of smooth muscle, cardiac muscle and glands)
Reflex
Doctor's use a knee hammer to see how well your knee reflexes work