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@inproceedings{2252414, author = {Nachtnebl, Luboš and Filipenský, Petr and Krechlerová, Magda and Bedáňová, Helena and Sedláková, Alena and Vajčner, Adam and Pohanka, Michal and Dobšák, Petr}, address = {Brno}, booktitle = {Noninvasive methods in cardiology 2022}, editor = {Cornélissen G., Siegelová J., Dobšák P.}, keywords = {Ion Balance; Mammal Cardiomyocytes}, howpublished = {tištěná verze "print"}, language = {eng}, location = {Brno}, isbn = {978-80-280-0170-4}, pages = {99-108}, publisher = {Masaryk University Press}, title = {A Brief Physiology of Ion Balance in Mammal Cardiomyocytes}, url = {https://is.muni.cz/do/med/noninvasive_methods_in_cardiology/Noninvasive_methods_in_cardiology_2022.pdf}, year = {2022} }
TY - JOUR ID - 2252414 AU - Nachtnebl, Luboš - Filipenský, Petr - Krechlerová, Magda - Bedáňová, Helena - Sedláková, Alena - Vajčner, Adam - Pohanka, Michal - Dobšák, Petr PY - 2022 TI - A Brief Physiology of Ion Balance in Mammal Cardiomyocytes PB - Masaryk University Press CY - Brno SN - 9788028001704 KW - Ion Balance KW - Mammal Cardiomyocytes UR - https://is.muni.cz/do/med/noninvasive_methods_in_cardiology/Noninvasive_methods_in_cardiology_2022.pdf N2 - The muscle cells (cardiomyocytes) that make up all of the heart muscle contract in a repetitive, organized and adapted way in order to ensure the final function of circulatory support. The coordination of the contractile function is ensured thanks to the syncitium structure of the cardiac tissue which allows the propagation of the electrical activity from one cardiac cell to another. This electrical activity translates into an action potential (AP) which represents the result of a cascade of ion transfers (entry of Na+ and Ca++ ions, exit of K+ ions), largely depending on the variations in permeability of the sarcolemma and succeeding from the diastolic potential. The latter, located between -80 and -90 mV, depends on the characteristics of the sarcolemma which, at rest, is almost exclusively permeable to K+ , and on the variations in ionic concentrations (Na+ and K+ ) on either side of this membrane. However, in diastole, the sarcolemma is slightly permeable to Na+ and the concentration gradients are maintained thanks to active transport ensured by an electrogenic ATP-dependent Na+ /K+ membrane pump. ER -
NACHTNEBL, Luboš, Petr FILIPENSKÝ, Magda KRECHLEROVÁ, Helena BEDÁŇOVÁ, Alena SEDLÁKOVÁ, Adam VAJČNER, Michal POHANKA a Petr DOBŠÁK. A Brief Physiology of Ion Balance in Mammal Cardiomyocytes. In Cornélissen G., Siegelová J., Dobšák P. \textit{Noninvasive methods in cardiology 2022}. Brno: Masaryk University Press, 2022, s.~99-108. ISBN~978-80-280-0170-4.
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