transverse tubules (T tubules) A series of infoldings of the plasma membrane (sarcolemma) of muscle fibres that envelop each myofibril at the Z line (see sarcomere). The T tubules transfer action potentials from the sarcolemma to the sarcoplasmic reticulum, which releases calcium ions into the cytosol causing contraction of the muscle fibres.
More From encyclopedia.com
Cardiac Muscle , cardiac muscle Your heart beats about once a second for the whole of your life, and of course has no opportunity to rest. Its output must adjust rapi… Neuromuscular Junction , neuromuscular junction The body contains over 600 different skeletal muscles and each consists of thousands of muscle fibres ranging in length from a… Transference , The term transference denotes a shift onto another person—usually the psychoanalyst—of feelings, desires, and modes of relating formerly organized or… Release , re·lease / riˈlēs/ • v. [tr.] 1. allow or enable to escape from confinement; set free: the government announced that the prisoners would be released.… cholecystokinin , cholecystokinin (CCK) is a peptide hormone that causes contraction of the gall bladder (the meaning of its name) and also release of digestive enzyme… Transfer , Skip to main content Transfer trans·fer • v. / transˈfər; ˈtransfər/ (-ferred , -fer·ring ) [tr.] move (someone or something) from one place to anoth…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like
Tranströmer, Tomas 1931- (Tomas Gösta Tranströmer, Tomas Goesta Tranströmer, Tomas Gösta Transtroemer, Tomas Gosta Transtromer)