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- Stretch_reflex abstract "The stretch reflex (myotatic 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, alpha-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.".
- Stretch_reflex wikiPageExternalLink NBK396.
- Stretch_reflex wikiPageID "4446294".
- Stretch_reflex wikiPageRevisionID "603829724".
- Stretch_reflex hasPhotoCollection Stretch_reflex.
- Stretch_reflex subject Category:Neurophysiology.
- Stretch_reflex subject Category:Reflexes.
- Stretch_reflex subject Category:Somatic_motor_system.
- Stretch_reflex comment "The stretch reflex (myotatic 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.".
- Stretch_reflex label "Dehnreflex".
- Stretch_reflex label "Reflexo miotático".
- Stretch_reflex label "Riflesso miotatico".
- Stretch_reflex label "Réflexe myotatique".
- Stretch_reflex label "Stretch reflex".
- Stretch_reflex sameAs Dehnreflex.
- Stretch_reflex sameAs Réflexe_myotatique.
- Stretch_reflex sameAs Riflesso_miotatico.
- Stretch_reflex sameAs Reflexo_miotático.
- Stretch_reflex sameAs m.0c2wvk.
- Stretch_reflex sameAs Q1183041.
- Stretch_reflex sameAs Q1183041.
- Stretch_reflex wasDerivedFrom Stretch_reflex?oldid=603829724.
- Stretch_reflex isPrimaryTopicOf Stretch_reflex.