What does stretch reflex mean?

Definitions for stretch reflex
stretch reflex

Here are all the possible meanings and translations of the word stretch reflex.

Princeton's WordNet

  1. stretch reflex, myotactic reflexnoun

    reflex contraction of a muscle when an attached tendon is pulled; important in maintaining erect posture

Freebase

  1. Stretch reflex

    The stretch reflex is a muscle contraction in response to stretching within the muscle. It is a monosynaptic reflex which provides automatic regulation of skeletal muscle length. When a muscle lengthens, the muscle spindle is stretched and its nerve activity increases. This increases alpha motor neuron activity, causing the muscle fibers to contract and thus resist the stretching. A secondary set of neurons also causes the opposing muscle to relax. The reflex functions to maintain the muscle at a constant length. Gamma motoneurons regulate how sensitive the stretch reflex is by tightening or relaxing the fibers within the spindle. There are several theories as to what may trigger gamma motoneurons to increase the reflex's sensitivity. For example, gamma co-activation might keep the spindles taut when a muscle is contracted, preserving their stretch-sensitivity even as the muscle fibers become shorter. Otherwise the spindles would become slack and the reflex would cease to function. This reflex has the shortest latency of all spinal reflexes including the Golgi tendon reflex and reflexes mediated by pain and cutaneous receptors.

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Numerology

  1. Chaldean Numerology

    The numerical value of stretch reflex in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of stretch reflex in Pythagorean Numerology is: 1

Examples of stretch reflex in a Sentence

  1. Scott Caulfield:

    Jumping falls into a type of exercise we call plyometrics, these exercises involve quicker, shorter motions that stimulate the stretch reflex. That reflex is responsible for explosive movement, like an outfielder reacting to a fly ball.

Images & Illustrations of stretch reflex

  1. stretch reflexstretch reflexstretch reflexstretch reflexstretch reflex

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    proceed or issue forth, as from a source
    • A. emanate
    • B. elaborate
    • C. affront
    • D. embellish

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