Anatomy and Physiology of Blood
Different types of Blood
Red Blood Cells
White Blood Cell
Movement of Blood
Veins and Venules
Veins and Venules/Varicose Veins
-Veins go to the heart or come to the heart
-Smaller than arteries
-Has valves and a smaller tunica media or smooth muscle
-Contracts when the vessel is cut or a vascular spasm
-When cut it may slow or stop the bleeding in small vessels and may last 30 minutes.
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