Body Systems: Functions & Organs

integumentary system

external body covering; protects tissues from injury; synthesis vit D; sensory receptors

integumentary organs

hair, skin, fingernails

skeletal system

protects & supports organs; frameworks movement muscles; stores minerals; blood cells formed within bones

skeletal organs

cartilages, joint, bones

muscular system

manipulation of environment; produced heat; locomotives, facial expressions, posture

muscular organs

skeletal muscles

nervous system

fast-acting control system; responds to all changes & activates appropriate muscles/glands

nervous organs

brain, sensory receptors, spinal cord, nerves

endocrine system

glands secrete hormones regulating growth, reproduction, & nutrients used by body cells

endocrine organs

pineal, pituitary, thyroid, thymus, & adrenal glands; pancreas, testis/ovary

cardiovascular system

blood vessels transports blood - carries oxygen nutrients, hormones, carbon dioxide, waste; heart pumps blood

cardiovascular organs

heart, blood vessels

lymphatic system

picks up leaked fluid from blood vessels returning it to blood; disposes debris in stream; houses white blood cells (immunity)

lymphatic organs

lymph nodes, lymphatic vessels

respiratory system

constantly supplies blood w/ oxygen removing carbon dioxide; gaseous exchanges occur in walls of air sacs of lungs

respiratory organs

nasal cavity, pharynx, larynx, trachea, bronchi, lungs

digestive system

breaks food down to absorbable nutrients entering the blood for distribution to cells; indigestible foodstuffs are feces

digestive organs

oral cavity, esophagus, stomach, small intestine, large intestine, rectum

urinary system

eliminates nitrogen-containing wastes from body; regulates water, electrolyte, & acid base balance

urinary organs

kidney, ureter, urinary bladder, urethra

male reproductive system

production of offspring; testes produce semen & sex hormone; ducts & glands aid in delivery of viable sperm

male reproductive organs

seminal vesicle, prostate, penis, testis, scrotum

female reproductive system

ovaries produce eggs & sex hormones; rest serves as fertilization & development site for fetus; mammary (breast) produce milk

female reproductive organs

mammary glands, uterine tube, ovary, uterus, vagina