What system transports substances throughout the body?, Skeletal system, Nervous system, Circulatory system, Digestive system, What are the two main parts of the circulatory system?, Heart and vessels, Bones and joints, Brain and nerves, Lungs and ribs, What body fluid transports substances inside the body?, Saliva, Blood, Tears, Sweat, What shape is the heart?, Star-shaped, Round, Square, Pear-shaped, Where is the heart located?, Abdomen, Chest cavity, Skull, Backbone, How is the lower end of the heart tilted?, Upward, Backward, To the right, To the left, What does the heart pump?, Blood, Water, Food, Air, What are tube-like structures carrying blood called?, Muscle fibers, Air sacs, Blood vessels, Body cells, How many types of blood vessels are there?, Two, Three, Five, Four, Which blood vessels carry blood from the heart?, Capillaries, Nerves, Arteries, Veins, Which blood vessels carry blood to the heart?, Capillaries, Arteries, Tubes, Veins, Which blood vessels connect arteries and veins?, Capillaries, Valves, Veins, Arteries, How are artery walls described?, Soft-walled, Broken-walled, Thin-walled, Thick-walled, Where are most arteries found?, Inside bones, Deep under skin, On the skin, In the mouth, Why are veins often seen as blue?, Fast flow, More oxygen, Superficial location, Thick walls, How are vein walls described?, Thin-walled, Double-walled, Thick-walled, Hard-walled, What kind of vessels are capillaries?, Hidden vessels, Narrow vessels, Large vessels, Blue vessels, What do capillary walls allow?, Store oxygen, Pump blood, Make blood, Exchange substances, Which substance is exchanged in capillaries?, Bone, Nails, Oxygen, Hair, Which waste product is mentioned in the lesson?, Urea, Calcium, Vitamins, Protein

Circulatory System

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