Organ Systems --- Functional Systems of the Body

Protects and covers the body Includes: hair, skin, glands

Protects the body Provides attachment sites for muscles Includes: bones and joints

•Used to create movement of the body and within the body •Generates heat • includes skeletal (voluntary) and smooth (involuntary) muscles of the body

•Produces chemical messengers called hormones •Hormones travel through the blood to affect distant organs •Includes: hypothalamus, pituitary gland, pancreas, thyroid gland

•Perceives the internal and external world •Responds to our environment •Creates thoughts and memory •Includes: brain, spinal cord, nerves

•Pumps blood around the body to distribute nutrients and remove waste •Includes: –Heart: acts as the pump –Blood vessels: distribute blood

•Works with the cardiovascular system •Transports excess fluid from tissues back into the cardiovascular system •Transport fluid through lymphatic organs that trigger the immune system •Include: lymphatic vessels, lymph node, thymus, spleen

•Responsible for breathing •Allows for exchange of oxygen and carbon dioxide between the lungs and the air and between the lungs and blood •Includes: nose, pharynx, larynx, trachea, lungs

•Receives nutrients from our environment •Physically and chemically digest our food and then absorb the molecules into the blood •Includes: mouth, pharynx, esophagus, stomach, intestine

•Filters blood to remove waste material in the urine •Controls quantity of water in the blood and thereby control blood pressure •Includes: kidney, ureters, bladder, urethra

•Produces new offspring •Includes: –Male reproductive system •Penis, testes, scrotum, vas deferens, sperm –Female reproductive system •Vagina, ovaries, uterus, fallopian tubes, mammary glands