Sir William Gull:
[Lecture on the human heart]
The human heart is a dense and powerful muscle, much like the organic equivalent of mahogany, and notoriously difficult to burn. About the size of a fist, it provides the motor power for the circulatory system. The heart contains two atria, two ventricle, and four valves. It is in effect a single pump, powering a double circuit. In the adult the heart rate averages 70 to 80 beats a minute. Such is the force of the heart beat, that if the body's largest artery, the aorta, is severed: a six-foot jet of blood is released.
Riportata da il 05/03/2025 alle ore 07:48

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