Sarcolemma

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sarcolemma

[‚sär·kə′lem·ə]
(histology)
The thin connective tissue sheath enveloping a muscle fiber.

Sarcolemma

 

the delicate membrane that invests smooth-muscle cells and striated and myocardial fibers. The term “sar-colemma” was introduced by the British physician W. Bowman in 1840. A sarcolemma consists of a three-layer cell membrane, which is approximately 75 angstroms thick and similar to the cell membrane in other animal cells, and a basilar membrane, which is a layer of amorphous matter containing polysaccharides. In vertebrates the basilar membrane of muscle cells and muscle fibers usually contains collagen fibrils.

REFERENCES

De Robertis, E., W. Nowinski, and F. Saez. Biologiia kletki. Moscow, 1967. (Translated from English.)
Elektronno-mikroskopicheskaia anatomiia. Moscow, 1967. (Translated from English.)