Organ Systems

skin, hair, nails

kidney, urethra, bladder

makes blood cells, provides support, protects tissues, provides leverage

produces heat, allows movement

adrenal, pituitary, thyroid

carries gases and dissolved materials throughout the entire body

first defense, helps control body temp., protects from environment

lymph vessels, spleen, nodes

absorbs nutrients, processes food, eliminates solid waste

lungs, bronchii, alveoli

intestine, liver, gall bladder

heart, blood vessels, blood

brain, spinal cord

defends against infection and disease and invading pathogens

skeletal, cardiac, smooth

eliminates excess water, salts, and waste products

directs response to environment, coordinates other systems

delivers air to sites where gas exchange occurs, removes wastes

ovaries, testes, mammary glands

releases hormones to direct long-term changes

bones, cartilage, ligaments

produces gametes (egg and sperm)