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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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The sarcoplasmic reticulum, Ca2+ trapping, and wave mechanisms in smooth muscle

Mccarron, John and Bradley, Karen and Macmillan, Debbi and Chalmers, Susan and Muir, Thomas C. (2004) The sarcoplasmic reticulum, Ca2+ trapping, and wave mechanisms in smooth muscle. News in Physiological Sciences, 19. pp. 138-147. ISSN 0886-1714

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Abstract

The sarcoplasmic reticulum (SR) and apposed regions of the sarcolemma passively trap Ca2+ entering the cell to limit the rise in cytoplasmic Ca2+ concentration without SR pump involvement. When "leaky," the SR facilitates Ca2+ entry to the cytoplasm. SR Ca2+ release via inositol 1,4,5-trisphosphate receptors (IP(3)Rs) propagates as calcium waves; IP(3)Rs alone account for wave propagation.