0
The patellar reflex is a reaction designed to prevent your quadriceps muscle from over-stretching When you put the hammer to your knee, you are stretching the tendon. In a healthy individual, this causes feedback to the brain telling it that the muscle is over-stretched. In this pathway there are two main reasons for failure. Firstly, the tendon itself; if it is loose/broken, for example if you have weak connective tissues, it will not stretch the muscle and cause the feedback.
The second reason is a failure in the nervous system in either the relay to the brain, or the motor neurons. Differentiation between the causes depends on other clinical signs.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Is the Patellar reflex inhibited or enhanced by voluntary muscle activity in the quadriceps?
The patellar reflex is inhibited
The patellar reflex is a type of?
knee jerk aka patellar reflex is an example of a stretch reflex
Which of the following is not correct regarding the patellar knee jerk reflex?
This reflex involves the cervical spinal nerves
Why doesn't the patellar reflex happen when your leg is straight?
Because the tendon in relaxed
What is responsible for the integration of simple responses to certain stimuli such as the patellar reflex?
spinal cord
The patellar knee jerk reflex is an example of?
Patellar reflex is an involuntary, deep tendon and myotatic reflex
Is the patellar reflex more or less vigorous after exercise?
The patellar reflex is more vigorous after exercise.
Is the Patellar reflex inhibited or enhanced by voluntary muscle activity in the quadriceps?
The patellar reflex is inhibited
What type of reflex does not involve the brain?
Patellar Reflex.
The patellar reflex is a type of?
knee jerk aka patellar reflex is an example of a stretch reflex
Is a patellar reflex autonomic?
no
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
Does the patella reflex persist after total knee replacement?
The paper of Jamieson et al. on this subject concludes the following: There is no plausible reason that TKA should affect the patellar tendon reflex. Despite this, in clinical practice TKA is often thought to be responsible for absent patellar tendon reflexes. This study supports the hypothesis that there is no effect of TKA on patellar tendon reflexes. Jamieson R, Flynn J, Love D. Does total knee arthroplasty affect the patellar tendon reflex? AMJ 2010, 1, 2, 183-185. Doi 10.4066/AMJ.2010.196
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
