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Recognizes and coordinates the bodys response to changes in its internal and external environments
Barrier against infection and injury; helps regulate body temp; provides protection against sun radiation
Provides oxygen needed for cellular respiration and removes excess carbon dioxide from the body
Converts foods into simpler molecules that cane be used by the cells of the body; absorbs food; eliminates wastes
Supports the body; protects internal organs; allows movement; serves as a site for blood cell formation; stores mineral reserves
Works with the skeletal system to produce voluntary movement; helps to circulate blood and move food through the digestive system
Brings oxygen, nutrients, and hormones to cells; fights infection; removes cell wastes; helps regulate body temp
Produces reproductive cells; in females, nurtures and protects developing embryo
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