SPACE-TIME ORGANIZATION OF CARDIAC

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

Описание:

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...

Stay connected:
http://www.gov.bc.ca/connect

SOURCES electrophysiological processes in the Heart

AECG is based on the registration of the electromagnetic field of the heart. Its source is the contractile myocardium and vascular system, organized into a single space-time structure.

Through the neurohumoral regulation of this structure is integrated in the body by means of sensors and higher neural structures respond to changes in the world.

Dr. Steve Potter - Closed-loop, open-source electrophysiology p1/2

Описание:

This talk was given on 10/19/12 by Dr. Steve Potter, Associate Professor and Director of the Laboratory for Neuroengineering within the Coulter Department of Biomedical Engineering at Georgia Tech and Emory University. Dr. Potter discusses his research using cultured mammalian brain cells on multi-electrode arrays to form a long-term, two-way interface between cultured neural networks and a computer to examine patterns of activation and information processing.

Emory University's Graduate Program in Neuroscience hosts weekly lectures by neuroscience researchers for their Frontiers in Neuroscience Seminar Series.