Circulatory Notes
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01 Circulatory SystemCirculatory system – takes ________oxygen____________ and nutrients to all cells and removes carbon dioxide and waste products.  Open circulatory system – blood baths the _______organs____________ directly; no blood vessels; Ex: insects  Closed circulatory system – blood is confined to blood vessels; Ex: ____humans_______.Arteries – carry blood _______away_____ from heart.Arterioles – small ______arteries_________.Capillaries – where oxygen and _______carbon dioxide____ exchange takes place.  Venules – small _______veins________.Veins – carry blood ______to________ the heart.  Valves – keep blood in _______veins_________ flowing towards the heart.Varicose veins – caused by the __________failure_________ of vein valves.    Blood – made up of ____red__________ blood cells, white blood cells, platelets, plasma, and things that are dissolved in plasma.Plasma – _______fluid________ in the bloodstream.Superior vena cava – 2nd largest _____vein________ that brings in deoxygenated blood from upper body.  Inferior vena cava – largest vein that brings in deoxygenated blood from ______lower_________ body.  Right atrium – receives deoxygenated blood; _______upper____ chamber on right side.Tricuspid valve – connects _______right________ atrium & right ventricle.  Right ventricle – deoxygenated blood; _______lower___________ chamber on right side.Pulmonary semilunar valve – connects ______right____ ventricle & pulmonary arteries.Pulmonary artery – deoxygenated blood; takes blood to ______lungs_________.

Lungs – respiratory organ to take in ______oxygen_______ and give off carbon dioxide.Pulmonary vein – oxygenated blood; takes blood back to ______left_______ atrium.Left atrium – oxygenated blood; _______upper_______ chamber on left side.Bicuspid (mitral) valve – connects left atrium & _______left________ ventricle.  Left ventricle – ____oxygenated______________ blood; lower chamber on left side.  Aortic semilunar valve – connects left ________ventricle_______ & aorta.Aorta -largest artery in the body; carries oxygenated blood to the heart(through the body).  Coronary arteries – arteries that supply the _______heart________ muscle with oxygen.  Heart attack – _________complete_____________ obstruction of a coronary artery and some of the heart muscle dies from lack of oxygen.Angina pectoris – chest pain from a partial obstruction of a _______coronary_________ artery and some of the heart isnt getting enough oxygen.Angioplasty – stick a balloon catheter in, expand the balloon, ______expand________ the artery, and compress the plaque.    For some interesting pictures go to

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Blood Baths And Blood Vessels. (July 4, 2021). Retrieved from https://www.freeessays.education/blood-baths-and-blood-vessels-essay/