单词 | muscle spindle |
释义 | muscle spindlen. Anatomy and Physiology. A fusiform bundle of specialized muscle fibres with sensory and motor innervation enclosed in a capsule of connective tissue, present in large numbers in skeletal muscle and sensitive especially to stretch. ΘΚΠ the world > life > the body > structural parts > muscle > parts of muscle > [noun] wella1400 fontanelle?a1425 head?a1425 belly1591 venter1615 tail1719 myotome1857 sclerotome1857 myomere1868 muscle spindle1894 spindle1894 Z line1916 Z band1950 dyad1957 triad1957 1894 Jrnl. Physiol. 17 238 He [sc. Kühne] designated the bundles simply in virtue of their shape, muscle-spindles, ‘muskel-spindeln’, the name adopted here as the most suitable of all that have been applied. 1930 A. A. Maximow & W. Bloom Text-bk. Histol. xiv. 276 Not infrequently, of two branches of the same sensory fiber one supplies a muscle spindle, the other a tendon spindle. 1974 R. A. Bergman & A. K. Afifi Atlas Microsc. Anat. vi. 140 Muscle spindles are found within skeletal muscles. Each spindle is formed of two to ten small muscle fibers, the intrafusal fibers, enclosed within a sheath of connective tissue. 1986 Times 24 July 22 Muscle spindles, the sense organs which record muscular tensions and so provide the ‘feed-back’ necessary for smooth movement. This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022). < n.1894 |
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