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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.
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Another name for the patellar reflex is the?
the knee-jerk reflex
What is a normal reaction for the patellar reflex?
knee jerk
What is the effector involved the patellar reflex?
In order to provoke the patellar reflex one must strike the patellar tendon with a tendon hammer (and only a tendon hammer, striking with an ordinary hammer is ill-advised). In other words, strike the region immediately below the patella.
The patellar reflex helps the body to maintain?
The patellar reflex helps the body maintain posture and balance by quickly contracting the quadriceps muscle in response to a tap on the patellar tendon. This reflex helps to prevent falls and maintains stability during sudden changes in position or movement.
Is the patellar reflex more or less vigorous after exercise?
The patellar reflex is generally more vigorous after exercise due to increased muscle activation and elevated excitability of the nervous system. This can result in a quicker and more pronounced response when the tendon is struck, leading to a stronger contraction of the quadriceps muscle and a more prominent knee jerk reflex.
The patellar knee jerk reflex is an example of?
Patellar reflex is an involuntary, deep tendon and myotatic reflex
Is the Patellar reflex inhibited or enhanced by voluntary muscle activity in the quadriceps?
The patellar reflex is enhanced by voluntary muscle activity in the quadriceps. When you contract your quadriceps, it stretches the patellar tendon, causing a stronger reflex response when the knee is tapped.
The patellar reflex is a type of?
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.
Is a patellar reflex autonomic?
no
Which of the following is not correct regarding the patellar 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.
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
Which ligament of the knee initiates the knee-jerk reflex?
The patellar tendon, just underneath the kneecap
Where are sensory stretch receptors of the withdrawal reflex located?
they are located in the limbs, because the limbs are the effectors of the withdrawal reflex.
What is a normal reaction for the patellar reflex?
knee jerk
When the subject was concentring on an arithmetic problem did the change noted in the patellar reflex indicate that brain activity is necessary for the patellar reflex or only that it may modify it?
It may modify it.
What is the effector involved the patellar reflex?
In order to provoke the patellar reflex one must strike the patellar tendon with a tendon hammer (and only a tendon hammer, striking with an ordinary hammer is ill-advised). In other words, strike the region immediately below the patella.
