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The left knee may not jerk when the doctor strikes it with a mallet due to several factors, including nerve damage or dysfunction in the reflex pathway, which involves the sensory and motor neurons. This reflex, known as the patellar reflex, requires a functioning connection between the knee, spinal cord, and brain. If there's an issue with any part of this pathway, such as injury or neurological conditions, the knee may not respond as expected. Additionally, factors like muscle relaxation or distraction during the test could also affect the reflex response.

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3mo ago

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Related Questions

What is the sequence of events in a reflex?

The answer to this question is that first something will happen. For example when you go the doctor, he/she will tap your knee with a little mallet to test your reflexes. Then a message is sent to your brain from your knee telling the brain that the knee has been tapped. Then the brain sends a message back to the knee ''telling'' it to jerk the leg forward. Basically the events of a reflex is sending messages back and forth throughout the body.


Another name for the patellar reflex is the?

the knee-jerk reflex


How can you use mallet in a sentence?

A mallet is a type of hammer, usually made of wood or rubber. Here are some sentences.The doctor hit my knee with a little rubber mallet and made it jerk.He tapped the board into place with a wooden mallet.She used a mallet and chisel to carve the stone into the shape of a bird.


What reflex is the knee jerk reflex an example of?

knee jerk aka patellar reflex is an example of a stretch reflex


Knee jerk is an example of a?

Reflex


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 is reflexive behavior?

Behaviors triggered by a reflex. Examples of this include sneezing after inhaling dust or the knee-jerk reaction when a doctor hammers your knee.


Is the knee jerk a simple reflex?

yes it is


An example of a reflex?

knee-jerk reflex


What is a normal reaction for the patellar reflex?

knee jerk


Will cervical damage affect knee jerk reflexes?

No