Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to sarcolemma: myofibril


A thin membrane enclosing a striated muscle fiber.

[sarco- + Greek lemma, husk; see lemma2.]

sar′co·lem′mal adj.


n, pl -mas or -mata (-mətə)
(Anatomy) the membrane covering a muscle fibre


(ˌsɑr kəˈlɛm ə)

n., pl. -mas.
the membranous sheath of a muscle fiber.
sar`co•lem′mic, sar`co•lem′mous, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sarcolemma - an extensible membrane enclosing the contractile substance of a muscle fibersarcolemma - an extensible membrane enclosing the contractile substance of a muscle fiber
tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
References in periodicals archive ?
The equine skeletal muscle displays intrinsic metabolic adaptations based on myofiber structure and function, substrate and by-product transport across the sarcolemma, and coordinated integration of metabolic pathways to produce ATP in response to exercise [9].
In turn, when activated, AMPK elicits GLUT-4 translocation to sarcolemma, leading to glucose uptake (24, 25).
This is thought to occur due inhibition by the mechanical compression of swelling in the muscle resulting in pushing fluid into the vascular beds to protect sarcolemma membrane integrity (i.
Degeneration is present within the first few hours after injury, and it is characterized by myofilaments and sarcolemma disruption, cell necrosis and hematoma formation followed by the inflammatory response (Sverzut and Chimelli, 1999; Tidball, 2005; Jarvinen et al.
The electromyographic (EMG) assessment of muscle as a sarcolemma output provides more information about the properties of motor units to control neuromuscular function (16).
In sarcolemma acetylcholine receptors exist that will contribute to membrane depolarization and onset of action potential.
Inhibition of gap junctional conductance by long-chain acylcarnitines and their preferential accumulation in junctional sarcolemma during hypoxia.
Whether there is muscle damage caused by this type of muscle action with disturbances in the sarcolemma and disruption of the Z lines (5,6,12) that are manifested through muscle injury markers such as creatine kinase (CK) and lactate dehydrogenase (LDH) (10,11) remains unclear.
Membrane/buffer partition coefficients (lambda) were directly measured in the sarcolemma and sarcoplasmic reticulum membranes for three CA DHPs.
The article explained the places of the fatigue of the Physical Education books, with the following contents: depletion of the energy substrates, accumulation of metabolic products, fatigue at the neuromuscular junction, fatigue in the sarcolemma and T tubules, fatigue in the sarcoplasmic reticulum and delayed onset muscle soreness.
Primary periodic paralysis is a rare autosomal dominant disorder of ion-channel dysfunction, manifested by episodic flaccid paresis secondary to abnormal sarcolemma excitability.
Dystrophin protects the sarcolemma from stresses developed during muscle contraction.