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Showing results for sarcolemma. Search instead for sarcolemmata.

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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See Examples For:

The sarcolemma is the site of action potential conduction, which triggers muscle contraction.

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

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

The sarcomere itself is bundled within the myofibril that runs the entire length of the muscle fiber and attaches to the sarcolemma at its end.

From Textbooks Jun. 19, 2013

She has muscles, not flabby, slender ribbons of empty sarcolemma.

From Modern Eloquence: Vol III, After-Dinner Speeches P-Z by Various

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