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Cards In This Set
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What is the function of the circulatory system?
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It moves nutrients, gases, and wastes to and from cells.
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Open Circulatory System
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Blood in sinuses, grasshopper
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Closed Circulatory System
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Blood stays within blood vessels, earthworm, humans.
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Protists, Hydra's Circulator System
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They don't need one because every cell is in contact with the watery environment.
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What is a human's circulatory system?
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<3
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Heart
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Muscular organ that pumps blood through the body; 4 chambers.
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What are the heart's 4 chambers and what do they do?
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Atria - upper chambers, collect blood from lungs and body.
Ventricles - lower chambers, pump blood to lungs and body. |
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Blood Flow Through Heart
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Left side pumps oxygen-rich blood; right side pumps oxygen-poor blood.
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Right Atrium
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Receives oxygen-poor blood returning to heart from body.
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Right Ventricle
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Pumps oxygen-poor blood to lungs.
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Left Atrium
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Receives oxygen-rich blood from lungs.
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Left Ventricle
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Pumps oxygen-rich blood to body.
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Pulmonary Artery
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Carries blood to lungs.
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Aorta
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Carries blood to body.
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Vena Cava
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Superior and inferior, return blood from heart to body.
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