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After the first purchase of slaves in 1619 by Jamestown settlers, additional purchases of Africans were relatively few in Virginia's early decades because
Cardiac Vein
Blood vessels that drain deoxygenated blood from the myocardium (heart muscle) into the right atrium of the heart, playing a crucial role in the circulatory system.
Cardiac Tamponade
A medical emergency where fluid accumulates in the pericardium, compressing the heart and reducing its ability to pump blood.
Pericardial Cavity
Space within the mediastinum in which the heart is located.
Pulmonary Circulation
The portion of the cardiovascular system that carries deoxygenated blood from the heart to the lungs and returns oxygenated blood back to the heart.
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