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12 terms

12 Major Organ Systems

Systems throughout the body.
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Integumentary System
skin, hair, nails
covers the body; regulates body temp; creates structures for sensation.
Skeletal System
basic framework of the body
protects & supports
bones, joints, cartilage
Muscular System
skeletal muscles attach to bones; maintains posture; helps us move
Nervous System
brain, spinal cord, nerves & sensory organs
Endocrine System
contains glands that secrete hormones; chemical substances regulate body activities
Circulatory System
blood, heart & blood vessels
pumps/transports blood; carries to all body cells; carries waste away from cells
Lymphatic System
lymph nodes, lymphatic vessels, lymph & other lymphoid organs
fluid balance; defense against pathogens & other foreign material
Immune System
an elaborate defense system; protects from pathogens, allergens & our own cells that have gone awry. (cancer cells)
Respiratory System
lungs & other structures that carry/conduct air to & from lungs
Digestive System
made up of organs designed to ingest food
breaks food down into substance that can be absorbed; eliminates the rest as waste
Urinary System
kidneys & other structures
helps excrete waste; controls water & electrolyte balance in the body
Reproductive System
organs & structures that enable humans to reproduce