provides structure; supports and protects internal organs
muscles (skeletal, cardiac, and smooth)
provides structure; supports and moves trunk and limbs; moves substances through body
skin, hair, nails
protects against pathogens; helps regulate body temperature
heart, blood vessels, blood
transports nutrients and wastes to and from all body tissues
air passages, lungs
carries air into and out of lungs, where gases (oxygen and carbon dioxide) are exchanged
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