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Vasoconstriction is the result of the contraction of smooth muscle of the
Anastomosis
The surgical connection between two structures, typically blood vessels or other tubular organs.
Cerebral Arterial Circle
Also known as the Circle of Willis, it is a circulatory anastomosis that supplies blood to the brain and surrounding structures.
Oxygenated Blood
Blood rich in oxygen, typically flowing from the lungs to the heart and then to the rest of the body.
Hepatic Portal Vein
A blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas, and spleen to the liver.
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