A patient's reflexes were tested during a medical exam. There is no reaction to the patellar tendon reflex. Where might pathology occur?

Question

Quizplus · Accepted Answer

The patellar tendon reflex, also known as the knee-jerk reflex, involves the spinal cord, specifically the L2-L4 level. It does not directly involve the brain, cerebrospinal fluid, or specific types of brain matter (gray or white). Pathology affecting the reflex arc components in the spinal cord can lead to an absent patellar reflex.

A Patient's Reflexes Were Tested During a Medical Exam