| 释义 |
sarcomere Anat.|ˈsɑːkəʊmɪə(r)|
[f. sarco- + -mere.]
A unit of a myofibril in striated muscle, consisting of a dark band and the nearer half of each adjacent pale band.
1891E. A. Schafer in Proc. R. Soc. XLIX. 281 The segment of a saracostyle comprised between two transverse membranes may be termed ‘muscle-segment’ or ‘sarcomere’. 1897Jrnl. Anat. & Physiol. XXXI. 336 [Schäfer] regards the sarcostyle as divided at regular intervals by Krause's transverse membranes into ‘muscle segments’ or ‘sarcomeres’, which are only new names for Krause's ‘muscle caskets’. 1900Bourne Comp. Anat. I. 96 The sarcostyle itself is made up of a number of segments, called sarcomeres, separated from one another by fine membranes. 1930W. Bloom Maximow's Text-bk. Histol. viii. 205 In the invertebrates (arthropods)..sarcomeres as long as 17µ have been found. The length of the sarcomere and the physiologic peculiarities of the muscle have not..been correlated. 1970T. S. & C. R. Leeson Histol. (ed. 2) ix. 162/2 It is customary to consider the muscle fibril as composed of structural units. Each unit extends between adjacent z lines and is termed a sarcomere. 1980Crawford & James in R. Owen et al. Sci. Foundations Orthopaedics & Traumatol. x. 68/1 Changes in sarcomere length occur by movement of the thick myosin filaments along the thin actin filaments, their own length remaining unchanged. |