muscle spindle

noun

Definition of muscle spindle

: a sensory end organ in a muscle that is sensitive to stretch in the muscle, consists of small striated muscle fibers richly supplied with nerve fibers, and is enclosed in a connective tissue sheath called also stretch receptor

First Known Use of muscle spindle

1894

in the meaning defined above

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Medical Dictionary

muscle spindle

noun

medical Definition of muscle spindle

: a sensory end organ in a muscle that is sensitive to stretch in the muscle, consists of small striated muscle fibers richly supplied with nerve fibers, and is enclosed in a connective tissue sheath called also stretch receptor

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