The Vascular System
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each of the black spaces below before clicking
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| Anastomosis | a connection or joining, especially of blood vessels
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| Circle of Willis | an arterial anastomosis that encircles the pituitary gland and supplies the brain with blood
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| ductus arteriosus | a short fetal blood vessel that takes most blood in the pulmonary artery to the aorta, bypassing the fetal lungs
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| foramen ovale | an opening in the interatrial septum of the fetal heart that permits blood to flow from the right to the left atrium
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| hepatic portal | the pathway of systemic circulation in which venous blood from the digestive organs and the spleen circulates through the liver before returning to the heart
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| perfusion | the circulation of blood to a body area or organ
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| peripheral resistance | the resistance of the blood vessels to the flow of blood
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| placenta | the organ formed in the uterus during pregnancy, made of both fetal and maternal tissue
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| precapillary sphincter | a smooth muscle cell at the beginning of a capillary network that regulates the flow of blood through the network
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| sinusoid | a large, very permeable capillary
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| umbilical arteries | the fetal blood vessels contained in the umbilical cord that carry deoxygenated blood from the fetus to the placenta
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| umbilical vein | the fetal blood vessel contained in the umbilical cord that carries oxygenated blood from the placenta to the fetus
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| venule | a small vein
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| anaphylactic shock | a type of circulatory shock that is the result of a massive allergic reaction
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| aneurysm | a localized sac or bubble that forms in a weak spot in the wall of a blood vessel, usually an artery
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| arteriosclerosis | the abnormal accumulation of lipids and other materials in the walls of arteries
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| hypertension | an abnormally high blood pressure, consistently above 130/85 mm Hg
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| hypovolemic shock | a type of circulatory shock caused by a decrease in blood volume
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| phlebitis | inflammation of a vein
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| pulse deficit | the condition in which the radial pulse count is lower than the rate of the heartbeat heard with a stethoscope
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| septic shock | a type of circulatory shock that is a consequence of a bacterial infection
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| varicose vein | an enlarged, abnormally dilated vein
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Created by:
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