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sarcolemma Syllabification: sar·co·lem·ma
Pronunciation: /ˌsärkəˈlemə/

Definition of sarcolemma in English:


The fine transparent tubular sheath that envelops the fibers of skeletal muscles.
Example sentences
  • The newborn larvae migrate from the host's blood vessels through the sarcolemma of striated muscle tissue, where they penetrate and encyst inside an individual muscle cell.
  • Desmin and vinculin are functionally related proteins that are present in the membrane-associated dense bodies in the sarcolemma of the smooth muscle cells.
  • EC coupling occurs at specialized regions where the intracellular sarcoplasmic reticulum forms junctions with the sarcolemma or, more frequently, with tubular invaginations of the sarcolemma known as transverse tubules.


Example sentences
  • Diffuse fluorescent uptake of procion orange in the cytoplasm of diaphragm muscle fibers identifies sarcolemmal rupture of those individual fibers.
  • Additional evidence for ongoing denervation of UA muscle in OSA is provided by the significant increase in sarcolemmal N-CAM staining.
  • Endotoxemia and sepsis also induce mitochondrial dysfunction, sarcolemmal injury, and weakness and fatigability of the diaphragm.


Mid 19th century: from Greek sarx, sark- 'flesh' + lemma 'husk'.

Definition of sarcolemma in:
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