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Showing results for sarcolemma. Search instead for sarcolemmas.

sarcolemma

American  
[sahr-kuh-lem-uh] / ˌsɑr kəˈlɛm ə /

noun

Anatomy.
  1. the membranous sheath of a muscle fiber.


sarcolemma British  
/ ˌsɑːkəʊˈlɛmə /

noun

  1. the membrane covering a muscle fibre

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of sarcolemma

First recorded in 1830–40; sarco- + lemma 2


Example Sentences

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The motor end plate possesses junctional folds—folds in the sarcolemma that create a large surface area for the neurotransmitter to bind to receptors.

From Textbooks ● Jun. 9, 2022

Long periods of sustained exercise may damage the SR and the sarcolemma, resulting in impaired Ca++ regulation.

From Textbooks ● Jun. 19, 2013

During the latent period, the action potential is being propagated along the sarcolemma.

From Textbooks ● Jun. 19, 2013

Muscle contraction usually stops when signaling from the motor neuron ends, which repolarizes the sarcolemma and T- tubules, and closes the voltage-gated calcium channels in the SR.

From Textbooks ● Jun. 19, 2013

Within the sarcolemma are minute fibrils and a semiliquid substance, called the sarcoplasm.

From Physiology and Hygiene for Secondary Schools by Francis M. Walters

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