Watch this high-resolution 3D image stack of a live mouse tibialis anterior muscle that shows blood flowing in the capillaries (shown in red) embedded in the sarcolemma of muscle fibers. Brian Glancy, PhD, recently demonstrated that skeletal muscle mitochondria form a highly connected network resembling an electrical power grid and, indeed, are capable of electrical conduction of the mitochondrial membrane potential throughout the cell. The discovery of this rapid energy distribution mechanism overturned longstanding ideas regarding diffusion as the primary energy distribution pathway in skeletal muscle. This video is by the National Heart, Lung, and Blood Institute (NHLBI), part of the National Institutes of Health (NIH). Dr. Glancy is a principal investigator at NHLBI. Learn more: http://www.nhlbi.nih.gov Follow us on Twitter: http://www.twitter.com/nih_nhlbi Like us on Facebook: http://www.facebook.com/NHLBI
National Heart, Lung, and Blood Institute
The National Heart, Lung, and Blood Institute (NHLBI) provides global leadership for a research, training, and education program to promote the prevention and treatment of heart, lung, and blood disorders and enhance the health of all individuals so that they can live longer and more fulfilling lives.
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