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Showing results for sarcolemma. Search instead for sarcolemmal.

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

The depolarization then spreads along the sarcolemma, creating an action potential as sodium channels adjacent to the initial depolarization site sense the change in voltage and open.

From Textbooks Jun. 9, 2022

The area of the sarcolemma on the muscle fiber that interacts with the neuron is called the motor end plate.

From Textbooks Jun. 9, 2022

Figure 10.4 Muscle Fiber A skeletal muscle fiber is surrounded by a plasma membrane called the sarcolemma, which contains sarcoplasm, the cytoplasm of muscle cells.

From Textbooks Jun. 19, 2013

Moreover, the muscle fibers of the heart are peculiar in that they are destitute of sarcolemma, the naked muscle fibers directly touching each other.

From Hygienic Physiology : with Special Reference to the Use of Alcoholic Drinks and Narcotics by Steele, Joel Dorman

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