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| superior/inferior vena cava |
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Definition
| transport deoxygenated blood from body into right atrium |
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-receives blood from vena cavas
-SA node stimulates contraction
-tricuspid valve opens into right ventricle |
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-receives blood from right atrium
-once full, ventricle contracts and pulmonary valve opens allowing blood to flow into pulmonary arteries toward lungs |
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-receives oxygenated blood from pulmonary veins
-contraction allows blood flow through mitrial valve into left ventricle |
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-receives oxygenated blood from left atrium
-once full, they contract and aortic valve opens allowing blood to flow throughout body |
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-between right ventricle and pulmonary artery
-between left ventricle and aorta |
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| relaxation where blood flows into 4 chambers |
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-tissue in right atrium
-stimulates both atria to contract simultaneously |
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-receives impulse from SA node
-conducts slowly allowing enough time for atrial contracton and ventricles to fill with blood |
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Term
| bundle of His (AV bundle) |
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Definition
-recieves impulse from AV node
-branches into Purkinje fibers generating a strong contracton |
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| excess interstitual fluid |
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| -transport lymph to cardiovascular system keeping body fluid levels constant |
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| swellings along lymph vessels containing leukocytes that filter lymph |
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-liquid portion of blood
-mix of nutrients, salts, gases, wastes, hormones, proteins |
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| erythrocytes, leukocytes, platelets |
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-RBCs
-lack nuclei and organelles
-carry oxygen |
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-WBCs
-phagocitize foreign matter
-macrophages/lymphocytes |
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| traps blood cells leading to clot formation |
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