Answer :
The overall blood pressure in the veins falls when blood leaves the heart. because blood arteries are passive and are powerless to stop the flow of blood.
The force of moving blood exerted against blood vessel walls is known as blood pressure (BP). The heart pumps blood via the circulatory system, which causes the majority of this pressure. The blood pressure in the major arteries is referred to as "blood pressure" when used without further qualifier.
The endothelium is a thin layer of cells that lines the interior surface of every blood artery. The basal lamina, an extracellular matrix created by surrounding epithelial cells, is what separates the endothelium from the rough outside layers of the blood artery.
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