Veins
Veins are vessels designed to collect and return blood, including deoxygenated hemoglobin, from tissues to the heart. Veins and the venous vascular system can be divided in to three separate sys...
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Veins
William Harvey's classic work on the circulatory system in the seventeenth century first defined the function of veins. Through dissections and experimentation, Harvey was able to illustrate tha...
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Veins
Veins