T tubules

From The School of Biomedical Sciences Wiki
Jump to: navigation, search

The action potential generated travels deep into the cell by the aid of t-tubules, which are invaginations of the sarcolemma. When the muscle is stimulated by Action Potential, the t tubules are triggered to release Ca2+ ions from the Terminal cristae of the Sarcoplasmic reticulum, which causes muscle contraction. They help spread the impulse so that the cell is able to contract at the same time[1][2].

References

  1. A. Fullick, J.Locke, P.Bircher. A level biology for OCR. Oxford University Press, Great Clarendon Street, Oxford, OX2 6DP, United Kingdom. 2015.
  2. Calcium regulation of muscle contraction. Biophys J. 1975;15(7):707-23.
Personal tools
Namespaces
Variants
Actions
Navigation
Toolbox