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21 Cards in this Set
- Front
- Back
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circulatory circuits
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paths through which blood travels
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# of circulatory circuits
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6
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pulmonary circulation route
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right atrium-right ventricle-pulmonary trunk-pulmonary arteries with deoxygenated blood-lungs-pulmonary veins with oxygenated blood-left atrium
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coronary circulation route
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right and left coronary arteries with O2 blood-arterioles-capillaries in walls of ventricles-venules-cardiac veins de02 blood- coronary sinus- right atrium
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location of opening to coronary arteries
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above aortic semilunar valve
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systemic circulation route
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aortic semilunar valve with o2 blood-capillary beds in all parts(except lungs)-entrance in the right atrium
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hepatic portal system route
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blood vessels from pancreas, spleen, stomach, intestines, and gall bladder (w deO2 nutrient rich blood)-hepatic portal vein-liver
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Hepatic veins
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take blood away from liver
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hepatic arteries
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take blood to arteries
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fetal lung blood flow
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small amount of blood flows into lungs, lungs are collapsed, vessels therein are compressed-hgih resistance to blood flow.
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role of valve of inferior vena cava in fetal blood flow
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diverts blood towards the patent foramen ovale
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most highly oxgenated blood in fetus
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blood supplying the carotid arteries
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postpartem blood flow
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umbilical vessels constrict, arteries first, then veins, constriction of ductus venosus, ductus arteriosus, closing of foramen ovale
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medial umbilical ligaments
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arise from the constricted umbilical artery postpartem
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ligamentum teres hepatis
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AKA round ligament in leading edge of falciform lgiament of liver, arises from umbilical vein postpartem
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ligamentum venosum
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fibrous cord in liver, arises from ductus venosus
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ligamentum arteriosum
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arises from ductus arteriosus
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closing of the foramen ovale
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blood pressure in the right atrium drops due to lack of umbilical flow in inferior vena cava, BP in left atrium drops due to more blood from pulmonary veins
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septum primum
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valve of the foramen ovale, closes as a result of left atrial BP increase, permanent closure takes up to a year
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fossa ovalis
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scar in heart from collapse of septum primum
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vasa vasorum
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blood vessels in the walls of blood vessels
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