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Cardiovascular System (diseases (Congested heart failure (left or right…
Cardiovascular System
diseases
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Congested heart failure
left or right side of the heart has problems; blood backs up into veins or increase pressure in veins allow fluids to leak
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Right side failure
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S/S: enlarged liver and spleen, swelling of feet, ankles, and hands
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polycythemia
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secondary
chronic, decrease levels of oxygen
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overview
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Arteries
carry blood away from heart, turn into arterioles
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venules
enlarged artery, takes blood from heart to head
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jugular veins
largest, take blood from head to heart
heart
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one organ, but 2 pumps working together
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4 chambers of the heart
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interatrial septum
wall between upper, small chambers
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blood
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Functions
transport nutrients
transport nutrients, oxygen, and hormones
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Composition
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90% water, nutrients, salt, hormones
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blood types
type A
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"self" agent, found on membrane of RBC
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functions
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movement of materials facilitates delivery of vital materials to cells of body and remove cellular waste
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Electrical pathway
autorhythmic
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specialized cardiac cells, create/distribute electrical current
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