Functional building blocks of the myocardium - cardiomyocytes - have a number of important physiological properties.
Under the ability to understand the contractility of cardiomyocytes shorten. At the heart of shortening is actomyosin conjugation.
Excitability is the ability to generate cardiomyocytes in response to electrical stimulation of action potentials.
Automatism is understood as the ability to produce cardiomyocytes Autowave electrical impulses under the influence of which (being isolated), they can be in a state of rhythmic contractions. This property is most developed in the conduction system of the heart, above all, the sinoatrial and atrioventricular nodes.
Conductivity means the transfer of excitation conduction system of the source (under physiological conditions, the sinoatrial node) to contractile cardiomyocytes.
When the result in (spontaneous) depolarization transmembrane potential reaches a threshold level, the cardiomyocytes are generated action potentials.
Ministry of Health
Grand Chief Doug Kelly, Chair of the First Nations Health Council, was joined today by the Honourable Rona Ambrose, Federal Minister of Health and B.C. Minister of Health Terry Lake, to celebrate the historic transfer of all health programs and services for B.C. First Nations previously administered by Health Canada to the new First Nations Health Authority (FNHA).
For more information, please visit:
http://www.newsroom.gov.bc.ca/2013/10...
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