T tubule
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/94/1023_T-tubule.jpg/250px-1023_T-tubule.jpg)
Alternative forms
[edit]Etymology
[edit]From transverse tubule.
Noun
[edit]- (anatomy) One of the extensions of the cell membrane of striated muscle cells, running in a transverse manner, that permit the transmission of the action potential into the cell and regulate cellular calcium concentration.
Synonyms
[edit]Translations
[edit]extension of the cell membrane of striated muscle cells
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