单词 | satellite cell |
释义 | > as lemmassatellite cell satellite cell n. (a) a neuroglial or other non-neural cell serving a supportive or protective role in a neural structure; (in later use) spec. any of a group of such cells surrounding a nerve cell body in a ganglion (also called amphicyte); (b) a small, spindle-shaped muscle cell found at the periphery of skeletal muscle fibres, thought to be involved in the repair of muscle after injury. ΚΠ 1904 Trans. Section on Pathol. & Physiol.: 55th Session (Amer. Med. Assoc.) 212 Occasionally, beside such a dotted cell, a true satellite cell is found, such as accompanies many normal nerve cells. 1954 M. Singer in R. O. Greep Histology xi. 216 Each cell body of spinal, cranial, and autonomic ganglia is completely encapsulated by a thin membrane composed of so-called satellite cells which contains small, scattered, and flattened nuclei. 1958 Exper. Cell Res. Suppl. No. 5 33 The structural characteristic which is present in all fibers so far studied..is the Schwann or satellite cell which..appears everywhere to enclose the axon. 1961 A. Mauro in Jrnl. Biophysical & Biochem. Cytol. 9 493/1 The presence of certain cells, intimately associated with the muscle fiber, have been observed which we have chosen to call satellite cells. 1971 W. M. Copenhaver et al. Bailey's Textbk. Histol. (ed. 16) x. 259/1 When these companion cells are in association with a nerve cell body.., they are called satellite cells; when they provide ensheathment for axons, they are called neurilemma cells, or cells of Schwann. 2010 Exper. Neurol. 222 161/1 They [sc. postganglionic sympathetic neurons] are completely enveloped in layers of epithelial-like syncytium of satellite cells (amphicytes). 2016 Daily Tel. (Nexis) 27 Nov. (Science section) A single satellite cell can undergo 75 generations of division during three months, which in theory could produce enough muscle to make 20 trillion turkey nuggets. < as lemmas |
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