William Harvey — "The heart is a muscle, and its function is to pump blood."
The heart is a muscle, and its function is to pump blood.
The heart is a muscle, and its function is to pump blood.
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"The blood, therefore, returns by the veins to the heart."
"The physician must be a constant student."
"The animal body is a commonwealth, in which every member is a subject to the whole."
"The valves in the veins are so constructed as to permit the passage of blood towards the heart, but to prevent its return."
"The physician's art is to imitate nature."
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