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STRETCH REFLEX

It is reflex muscle contraction in response of its stretch. It is a monosynaptic reflex which provides automatic regulation of skeletal muscle length. The patellar reflex is an example.

Supraspinal Control

Inhibitory Signals on gamma neurons through lateral reticulospinal tract from

  • Motor Area 6
  • Pleo cerebellum
  • Red nucleus

Facilitatory signals on gamma neurons through ventral reticulospinal tract from

  • Motor Area 4
  • Neocerebellum
  • vistibular nucleus

Spinal Control

  • Withdrawer reflex
  • Damping & Loading reflex
  • Jendrasek's maneuver