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4th grade - final test review

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  • the hardest substance in the body
    enamel
  • Correct way to lift a heavy object
    keep your back straight, bend your knees and lift with your legs
  • the joint that allows the arms and leg to move in many directions
    ball and socket
  • another name for the scapula
    shoulder blade
  • Another name for the collarbone
    clavicle
  • the flat bones of the skull
    cranium
  • a long bone of the foot
    metatarsal
  • the bronchioles end in tiny air sacs
    alveoli
  • the fatty layer that stores energy
    subcutaneous layer
  • a band of tough fibers which connects one bone to another
    ligament
  • the flap of cartilage which covers the windpipe when swallowing
    epiglottis
  • The improper fitting together of the upper and lower teeth
    maloclussion
  • fibers which connect muscle to bone
    tendons
  • the gentle pulling of muscles against each other
    muscle tone
  • cilia are located in the
    air passages
  • the sinuses are hollow spaces located in the front of the
    skull
  • the number of bones in the body
    206
  • a film of harmful bacteria
    plaque
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