Muscle spindle apparatus — Free Physiology Illustration | GPAI | GPAI

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Muscle spindle apparatus — Free Physiology Illustration | GPAI | GPAI

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Muscle spindle apparatus

Muscle spindle apparatus

Physiology

Muscle spindle apparatus

A compact spindle-shaped proprioceptor unit with an outer capsule enclosing multiple thin intrafusal fibers, a widened central receptor zone, spiral primary sensory ending around the center, secondary sensory branches nearby, and small motor nerve terminals at the polar ends. Soft pink muscle tissue colors with yellow nerves.

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PNG

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