Circulatory Notes
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01 Circulatory SystemCirculatory system β takes ________oxygen____________ and nutrients to all cells and removes carbon dioxide and waste products. Open circulatory system β blood baths the _______organs____________ directly; no blood vessels; Ex: insects Closed circulatory system β blood is confined to blood vessels; Ex: ____humans_______.Arteries β carry blood _______away_____ from heart.Arterioles β small ______arteries_________.Capillaries β where oxygen and _______carbon dioxide____ exchange takes place. Venules β small _______veins________.Veins β carry blood ______to________ the heart. Valves β keep blood in _______veins_________ flowing towards the heart.Varicose veins β caused by the __________failure_________ of vein valves. Blood β made up of ____red__________ blood cells, white blood cells, platelets, plasma, and things that are dissolved in plasma.Plasma β _______fluid________ in the bloodstream.Superior vena cava β 2nd largest _____vein________ that brings in deoxygenated blood from upper body. Inferior vena cava β largest vein that brings in deoxygenated blood from ______lower_________ body. Right atrium β receives deoxygenated blood; _______upper____ chamber on right side.Tricuspid valve β connects _______right________ atrium & right ventricle. Right ventricle β deoxygenated blood; _______lower___________ chamber on right side.Pulmonary semilunar valve β connects ______right____ ventricle & pulmonary arteries.Pulmonary artery β deoxygenated blood; takes blood to ______lungs_________.
Lungs β respiratory organ to take in ______oxygen_______ and give off carbon dioxide.Pulmonary vein β oxygenated blood; takes blood back to ______left_______ atrium.Left atrium β oxygenated blood; _______upper_______ chamber on left side.Bicuspid (mitral) valve β connects left atrium & _______left________ ventricle. Left ventricle β ____oxygenated______________ blood; lower chamber on left side. Aortic semilunar valve β connects left ________ventricle_______ & aorta.Aorta -largest artery in the body; carries oxygenated blood to the heart(through the body). Coronary arteries β arteries that supply the _______heart________ muscle with oxygen. Heart attack β _________complete_____________ obstruction of a coronary artery and some of the heart muscle dies from lack of oxygen.Angina pectoris β chest pain from a partial obstruction of a _______coronary_________ artery and some of the heart isnt getting enough oxygen.Angioplasty β stick a balloon catheter in, expand the balloon, ______expand________ the artery, and compress the plaque. For some interesting pictures go to