subject: Understanding the Stretch Reflex: A Key Component of Neuromuscular Function [print this page]
The stretch reflex is a fundamental neurological response that helps maintain muscle tone and posture. It occurs when a muscle is stretched suddenly, prompting an automatic contraction to resist the stretch. This reflex is controlled by the spinal cord and does not require input from the brain, allowing for quick and efficient responses to changes in muscle length. A common example of the stretch reflex is the knee-jerk reaction tested by doctors. This reflex is crucial for activities like walking, maintaining balance, and avoiding injury. By quickly activating the stretched muscle, the stretch reflex helps protect the body from overstretching and potential damage.
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