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The stimulus for the knee jerk reflex, also known as the patellar reflex, is the stretching of the patellar tendon when the knee is tapped just below the kneecap. This stretch activates sensory neurons that send signals to the spinal cord. In response, motor neurons are triggered, causing the quadriceps muscle to contract and resulting in the quick extension of the lower leg. This reflex helps maintain posture and balance.
What else can I help you with?
What are two examples of a stimulus response reaction?
The knee jerk and touching something hot or sharp and moving your hand away quickly.
Another name for the patellar reflex is the?
the knee-jerk reflex
What reflex is the knee jerk reflex an example of?
knee jerk aka patellar reflex is an example of a stretch reflex
What is a predicatable automatic response to a stimulus is called?
A predictable automatic response to a stimulus is called a reflex. Reflexes are involuntary and occur rapidly without conscious thought, often to protect the body from harm. An example is the knee-jerk reflex, where tapping the knee causes an automatic leg extension. These responses are essential for survival and are mediated by the nervous system.
Does the hamstring cross the knee joint?
Yes. from behind. (They flex the knee.)
Knee jerk is an example of a?
Reflex
Is it true or false that The quadricep muscle is used to flex the knee?
False. The quadriceps muscle is primarily responsible for extending the knee, not flexing it. The muscles that flex the knee are mainly the hamstrings.
Do paraplegics have knee jerk reflexes?
Yes, paraplegics can still have knee jerk reflexes. The knee jerk reflex is controlled by the lower part of the spinal cord, which may still function even if there is paralysis or impairment in the upper part of the cord. However, the presence or absence of knee jerk reflexes does not determine the extent of paralysis in paraplegics.
During a knee-jerk reflex the nerve impulse is received by the?
The knee-jerk reflex is controlled by the interneurons in the spinal cord.
What joint helps your leg flex and extend?
The knee helps your leg flex and extend.
Which muscle groups flex the knee?
hamstrings
Which muscle causes the knee to flex?
The Quadriceps.
