No, the knee jerk reflex is a monosynaptic reflex that involves the contraction of the quadriceps muscle to extend the knee in response to a tap on the patellar tendon. It is not considered an extensor thrust reflex, which involves a more complex pattern of muscle activation to generate forceful extension of the limb.
the knee-jerk reflex
knee jerk
Yes, the knee jerk reflex can be dampened or altered by distraction, as focus on other stimuli can reduce its intensity. However, the reflex itself is a deep spinal cord reflex that may still occur to some extent even with distraction.
The simplest reflex is a monosynaptic reflex, which involves only two neurons: a sensory neuron and a motor neuron. An example of this is the knee-jerk reflex, where tapping the knee causes a quick, automatic extension of the leg.
The patellar knee-jerk reflex is a monosynaptic reflex arc involving the sensory neurons, spinal cord, and motor neurons. When the patellar tendon is tapped, sensory receptors called muscle spindles detect the stretch and send a signal to the spinal cord. The spinal cord then immediately sends a signal back to the quadriceps muscles to contract, causing the knee to jerk involuntarily.
the knee-jerk reflex
knee jerk aka patellar reflex is an example of a stretch reflex
knee-jerk reflex
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.
The knee-jerk reflex is controlled by the interneurons in the spinal cord.
yes it is
The knee-jerk reflex is a common example of a reflex. It occurs when the knee is tapped and the leg kicks out involuntarily in response.
knee jerk
knee jerk reflex
Patellar reflex is an involuntary, deep tendon and myotatic reflex
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.