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- Sarcolemma abstract "The sarcolemma (sarco (from sarx) from Greek; flesh, and lemma from Greek; sheath.) also called the myolemma, is the cell membrane of a striated muscle fiber cell. It consists of a plasma membrane, which is a lipid bilayer, and an outer coat consisting of a thin layer of polysaccharide material (glycocalyx) that contacts the basement membrane, which contains numerous thin collagen fibrils and specialized proteins such as laminin that provide a scaffold for the muscle fiber to adhere to. Through transmembrane proteins residing in the plasma membrane, the actin skeleton inside the cell is connected to the basement membrane and the cell's exterior. At each end of the muscle fiber, the surface layer of the sarcolemma fuses with a tendon fiber, and the tendon fibers in turn collect into bundles to form the muscle tendons that then adhere onto bones.The sarcolemma generally maintains the same function in muscle cells as the plasma membrane does in other eukaryote cells. It acts as a barrier between the extracellular and intracellular compartments, defining the individual muscle fiber from its surroundings. The lipid nature of the membrane allows it to separate the fluids of the intra- and extracellular compartments, since it is only selectively permeable to water through aquaporin channels. As in other cells this allows for the compositions of the compartments to be controlled by selective transport through the membrane. Membrane proteins, such as ion pumps, may create ion gradients with the consumption of ATP, that may later be used to drive transport of other substances through the membrane (Co-transport) or generate electrical impulses such as Action potentials.A special feature of the sarcolemma is that it invaginates into the cytoplasm of the muscle cell, forming membranous tubules radially and longitudinally within the fiber called transverse tubules (T-tubules). On either side of the transverse tubules are Terminal cisterna enlargements of smooth endoplasmic reticulum termed sarcoplasmatic reticulum (SR) in muscle. A transverse tubule surrounded by two SR cisterna are known as triads, and the contact between these structures is located at the junction of the A and I bands.".
- Sarcolemma thumbnail Blausen_0801_SkeletalMuscle.png?width=300.
- Sarcolemma wikiPageID "1223594".
- Sarcolemma wikiPageLength "3548".
- Sarcolemma wikiPageOutDegree "21".
- Sarcolemma wikiPageRevisionID "682486408".
- Sarcolemma wikiPageWikiLink Action_potential.
- Sarcolemma wikiPageWikiLink Action_potentials.
- Sarcolemma wikiPageWikiLink Active_transport.
- Sarcolemma wikiPageWikiLink Adenosine_triphosphate.
- Sarcolemma wikiPageWikiLink Aquaporin.
- Sarcolemma wikiPageWikiLink Basement_membrane.
- Sarcolemma wikiPageWikiLink Category:Membrane_biology.
- Sarcolemma wikiPageWikiLink Cell_membrane.
- Sarcolemma wikiPageWikiLink Co-transport.
- Sarcolemma wikiPageWikiLink Collagen.
- Sarcolemma wikiPageWikiLink Endoplasmic_reticulum.
- Sarcolemma wikiPageWikiLink Eukaryote.
- Sarcolemma wikiPageWikiLink Glycocalyx.
- Sarcolemma wikiPageWikiLink Ion_pump_(physics).
- Sarcolemma wikiPageWikiLink Ion_pumps.
- Sarcolemma wikiPageWikiLink Laminin.
- Sarcolemma wikiPageWikiLink Lipid_bilayer.
- Sarcolemma wikiPageWikiLink Plasma_membrane.
- Sarcolemma wikiPageWikiLink Sarcoplasmatic_reticulum.
- Sarcolemma wikiPageWikiLink Skeletal_muscle.
- Sarcolemma wikiPageWikiLink Striated_muscle_tissue.
- Sarcolemma wikiPageWikiLink T-tubule.
- Sarcolemma wikiPageWikiLink T-tubules.
- Sarcolemma wikiPageWikiLink Terminal_cisterna.
- Sarcolemma wikiPageWikiLink Terminal_cisternae.
- Sarcolemma wikiPageWikiLinkText "Sarcolemma".
- Sarcolemma wikiPageWikiLinkText "cell membrane of the muscle fiber".
- Sarcolemma wikiPageWikiLinkText "sarcolemma".
- Sarcolemma wikiPageWikiLinkText "sarcolemmal membranes".
- Sarcolemma wikiPageWikiLinkText "sarcolemmal".
- Sarcolemma wikiPageWikiLinkText "sarcomlemmal".
- Sarcolemma wikiPageWikiLinkText "subsarcolemmal".
- Sarcolemma caption "Skeletal muscle, with sarcolemma labeled at upper left.".
- Sarcolemma hasPhotoCollection Sarcolemma.
- Sarcolemma name "Sarcolemma".
- Sarcolemma wikiPageUsesTemplate Template:Cell-biology-stub.
- Sarcolemma wikiPageUsesTemplate Template:Infobox_anatomy.
- Sarcolemma wikiPageUsesTemplate Template:Muscle_tissue.
- Sarcolemma wikiPageUsesTemplate Template:Portal.
- Sarcolemma wikiPageUsesTemplate Template:Refimprove.
- Sarcolemma wikiPageUsesTemplate Template:Reflist.
- Sarcolemma subject Category:Membrane_biology.
- Sarcolemma type AnatomicalStructure.
- Sarcolemma type Biophysic.
- Sarcolemma type Thing.
- Sarcolemma type Q4936952.
- Sarcolemma comment "The sarcolemma (sarco (from sarx) from Greek; flesh, and lemma from Greek; sheath.) also called the myolemma, is the cell membrane of a striated muscle fiber cell. It consists of a plasma membrane, which is a lipid bilayer, and an outer coat consisting of a thin layer of polysaccharide material (glycocalyx) that contacts the basement membrane, which contains numerous thin collagen fibrils and specialized proteins such as laminin that provide a scaffold for the muscle fiber to adhere to.".
- Sarcolemma label "Sarcolemma".
- Sarcolemma sameAs Sarkolemm.
- Sarcolemma sameAs Sarcolema.
- Sarcolemma sameAs سارکولما.
- Sarcolemma sameAs Sarkolema.
- Sarcolemma sameAs Sarcolemma.
- Sarcolemma sameAs 筋鞘.
- Sarcolemma sameAs Сарколемма.
- Sarcolemma sameAs Sarcolemma.
- Sarcolemma sameAs Sarkolema.
- Sarcolemma sameAs Sarcolema.
- Sarcolemma sameAs m.04jw9z.
- Sarcolemma sameAs Сарколемма.
- Sarcolemma sameAs Сарколема.
- Sarcolemma sameAs Màng_sợi_cơ.
- Sarcolemma sameAs Q1545001.
- Sarcolemma sameAs Q1545001.
- Sarcolemma wasDerivedFrom Sarcolemma?oldid=682486408.
- Sarcolemma depiction Blausen_0801_SkeletalMuscle.png.
- Sarcolemma isPrimaryTopicOf Sarcolemma.
- Sarcolemma name "Sarcolemma".