1) Which human body system does this picture indicate? a) muscles b) skeleton c) brain 2) Name this bone. a) muscles b) skull c) ribs 3) What is the name for these 33 bones? a) skull b) ribs c) vertebrae 4) The brain is protected by the a) skull b) ribs c) backbone 5) The heart and lungs are protected by the a) skull b) ribs c) backbone 6) The spinal cord is protected by a) vertebrae b) skull c) ribs 7) The backbone has many bones in it. a) true b) false 8) Bones give the body a _____. a) space b) shape c) part 9) Bones help the body____. a) sit b) run c) jump d) sit, run, and jump 10) The largest bone is the _____. a) backbone b) femur c) stapes 11) The smallest bone is the _______. a) backbone b) femur c) stapes 12) The bones in the fingers, thumbs, and toes are called _________. a) backbone b) phalanges c) femur 13) Keep bones strong and healthy by _______. a) sitting still b) eating sugar c) exercising and eating foods with calcium 14) The place bones meet is a _______. a) femur b) joint c) muscle 15) A hinge joint is at your ______. a) elbow b) shoulder 16) A ball and socket joint is at your a) elbow b) shoulder 17) How many bones does an adult have? a) 300 b) 206

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