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Muscle Spindles

Skeletal muscle structures that function as the MECHANORECEPTORS responsible for the stretch or myotactic reflex (REFLEX, STRETCH). They are composed of a bundle of encapsulated SKELETAL MUSCLE FIBERS, i.e., the intrafusal fibers (nuclear bag 1 fibers, nuclear bag 2 fibers, and nuclear chain fibers) innervated by SENSORY NEURONS.

Year introduced: 1993

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Subheadings:

Tree Number(s): A08.675.650.915.750.500, A08.800.950.750.500, A10.690.552.500.750, A11.671.650.915.750.500

MeSH Unique ID: D009470

Entry Terms:

  • Muscle Spindle
  • Spindle, Muscle
  • Spindles, Muscle
  • Muscle Stretch Receptors
  • Muscle Stretch Receptor
  • Receptor, Muscle Stretch
  • Receptors, Muscle Stretch
  • Stretch Receptor, Muscle
  • Neuromuscular Spindles
  • Neuromuscular Spindle
  • Spindle, Neuromuscular
  • Spindles, Neuromuscular
  • Receptors, Stretch, Muscle
  • Stretch Receptors, Muscle

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