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Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
The pumped blood carries oxygen and nutrients to the tissue, while carrying metabolic waste such as carbon dioxide to the lungs. [3] In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum. [4]
Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissues, the others being skeletal muscle and smooth muscle.It is an involuntary, striated muscle that constitutes the main tissue of the wall of the heart.
The ABC sitcom originally starred Michael J. Fox, who left the show after four seasons following his Parkinson's diagnosis and was replaced by Charlie Sheen
A Colorado man is facing possible bias-motivated charges for allegedly attacking a television news reporter after demanding to know whether he was a citizen, saying “This is Trump’s America ...
3.6%; between 2008 and 2012, better performance than 11% of all directors; The Donald E. Powell Stock Index. From June 2009 to December 2012, if you bought shares in ...
At least one person is dead and nine are injured after what police called a mass shooting near a funeral home in Towson, Maryland on Tuesday night, police said. The incident happened at around 7: ...
An ultra-trained athlete would have a resting heart rate of 37–38 bpm. [3] Tachycardia is a high heart rate, defined as above 100 bpm at rest. [4] Bradycardia is a low heart rate, defined as below 60 bpm at rest. When a human sleeps, a heartbeat with rates around 40–50 bpm is common and considered normal.