fast acting control system( brain, spinal cord, nerves, sensory receptors); responds to stimuli from outside and inside the body by activating appropriate muscles or glands
endocrine system
slower control system (endocrine glands) ; regulates body activity
cardiovascular system
Heart, blood vessels, ; transports blood which carries oxygen, carbon dioxide, nutrients, wastes, etc.
lymphatic system
lymphatic vessels, lymph nodes, spleen ; return fluid leaked from the blood to the blood vessels, cleanse blood, house white blood cells involved in immunity
respiratory system
nasal passages, pharynx, larynx, trachea, bronchi, lungs ; supplies body with oxygen and gets rid of carbon dioxide
digestive system
mouth, esophagus, stomach, small and large intestines, rectum ;break down food and deliver nutrients to blood eliminate undigested food through anus as feces
urinary system
(aka excretory system) kidneys, ureters, bladder, urethra; removes wastes from blood , produce urine to eliminate these wastes, maintains a water and salt balance, maintains an acid-base balance
reproductive system
reproduction
responsiveness
irritability, ability to react to changes in environment
survival needs
nutrients, oxygen, water, stable body temperature,and atmospheric pressure
homeostasis
ability to maintain stable internal conditions even when outside conditions change
atomical position
body is erect, feet parallel, arms at sides with palms forward