The organ systems

endocrine system

Major organs: pituitary gland, thyroid gland, pancreas, adrenal glands, gonads, endocrine tissues in other systems
functions: directs long-term changes in the activities of other organ systems; adjusts metabolic activity and energy use by the body; contro

integumentary system

major organs: skin, hair, sweat glands, nails
functions: protects against environmental hazards; helps regulate body temp; provides sensory info

skeletal system

organs: bones, cartilages, associated ligaments, bone marrow
functions: provides support and protection for other tissues; stores calcium and other minerals; forms blood cells

muscular system

organs: skeletal muscles and associated tendons
functions: provides movement; provides protection and support for other tissues; generates heat that maintains body temperature

nervous system

organs: brain, spinal cord, peripheral nerves, sense organs
functions: directs immediate responses to stimuli; coordinates or moderates activities of other organ systems; provides and interprets sensory info about external conditions

cardiovascular system

organs: heart, blood, blood vessels
functions: distributes blood cells, water, dissolved materials incl. nutrients, waste products, oxygen, carbon dioxide; distributes heat and assists in control of body temperature

lymphatic system

organs: spleen, thymus, lymphatic vessels, lymph nodes, tonsils
functions: defends against infection and disease; returns tissue fluids to the bloodstream

respiratory system

organs: nasal cavities, sinuses, larynx, trachea, bronchi, lungs, alveoli
functions: delivers air to alveoli; provides oxygen to bloodstream; removes carbon dioxide from bloodstream; produces sounds for communication

digestive system

organs: teeth, tongue, pharynx, esophagus, stomach, small intestine, large intestine, liver, gallbladder, pancreas
functions: processes and digests food; absorbs and conserves water; absorbs nutrients; stores energy reserves

urinary system

organs: kidneys, ureters, urinary bladder, urethra
functions: excretes waste products from blood; controls water balance y regulating volume of urine produced; stores urine prior to voluntary elimination; regulates blood ion concentrations and pH

male reproductive system

organ: testes, epididymides, ductus deferentia, seminal vesicles, prostate gland, penis, scrotum
functions: produces male sex cells (sperm), suspending fluids, hormones; sexual intercourse

female reproductive system

organs: ovaries, uterine tubes, uterus, vagina, labia, clitoris, mammary glands
functions: produces female sex cells (oocytes) & hormones; supports developing embryo from conception to delivery; provides milk to nourish newborn infant; sexual intercourse