Cardiovascular and Respiratory systems: Application of Cell Transport Concepts

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7 Terms

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goal of the cardiovascular system

transport of nutrients, oxygen, and hormones to body cells and removal of wastes, enabling simple diffusion between blood and cells

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arteries

carry blood away from the heart

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veins

carry blood toward the heart

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capillaries

connect arteries and veins; thin walls allow simple diffusion between blood and cells

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goal of respiratory system

deliver oxygen to the blood and remove carbon dioxide from the blood, establishing concentration gradients for diffusion

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gas exchange at the alveolus (lungs)

-oxygen diffuses from the alveolus to the capillary blood

-carbon dioxide diffuses from the capillary blood to the alveolus

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gas exchange at body tissues

-oxygen diffuses from the capillary blood to the body cells

-carbon dioxide diffuses from the body cells to the capillary blood