The Human Body

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• The iron-containing protein in red blood cells that binds and transports oxygen.

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• The dome-shaped muscle separating the thoracic and abdominal cavities; the primary muscle of breathing.

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• Delivery of oxygenated blood to body tissues at the capillary level.

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• Thin double-layered membrane covering the lungs and lining the inside of the chest wall.

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• A vertical plane that divides the body into front (anterior) and back (posterior) portions.

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