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STUDENT VOCABULARYHEALTHY HUMANS, HEALTHY ANIMALSAnimal management- the things that zoos do to keep animals healthy and happy throughouttheir life cycles, including breeding programs, exercise, diet, opportunities for new experienceseach day, and veterinary careBody system- a group of organs that work together as a unit to perform a certain task (e.g., thedigestive system)Circulatory system- allows blood to circulate through the body (includes heart, veins andarteries in humans)Dermal system- covers and protects the body (includes skin, hair and nails for humans)Digestive system- allows organisms to absorb nutrients from food and get rid of food waste(includes teeth, tongue, esophagus, stomach and intestines)Endocrine system- sends chemical messengers (hormones) throughout the body to controlhow and when the body breaks down food, sleeps, grows, develops sexually, handles moods,reacts to dangerous situations (fight or flight response) and regulates pain (includes hormonesthroughout the body)Excretory system- allows the body to get rid of waste such as urine, salt (sweat) and carbondioxide (includes bladder, kidneys, urethra, sweat glands in skin and lungs)Immune system- the body’s defense system against infections and disease (includes mucusmembranes, white blood cells and chemical responses that cause sneezing and fevers)Muscular system- allows the body to move; works with the skeletal system to move arms, legs,head and torso; works with the nervous system and endocrine system to control the movementof organs (like your stomach and heart)Nervous system- is the control system of the body; sends, receives and processes nervesignals to tell the body what it is experiencing with its senses and how the body should react toits environment (includes the brain, spinal cord, nerves, emotions, eyes and ears)Organ- a part of an organism that performs a specific function (e.g., the stomach)Respiratory system- allows the body to take in oxygen and release carbon dioxide (includesnasal passages and lungs in humans)Skeletal system- provides shape and support for the body; protects organs (includes all bones,including the skull)