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What connects the mouth to the stomach?
esophagus
Where does oxygen and carbon dioxide enter and leave the body inside the lungs?
alveoli
What’s blue and smells like red paint?
Blue paint
What is produced by the liver?
bile
What did the farmer say when he lost his tractor?
“Where’s my tractor?”
What chemical is produced by glands in the endocrine system?
hormones
What is the main organ of the circulatory system?
heart
What is the main organ of the respiratory system?
lungs
What cushions bones so they will not rub against each other?
cartilage
What are the three types of muscle tissue
smooth, cardiac and skeletal
What is the main organ of the digestive system
stomach
What connects muscles to bone?
tendons
What filters blood and removes waste?
kidneys
Which two body systems allow the body to move?
skeletal and muscular
What body system is the first protective barrier from the outside?
integumentary system
Which body system uses tonsils, spleen and lymph nodes to fight invaders with antibodies?
immune
