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Human Body Systems Review

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  • Our skin is made up of how many layers...
    3
  • What is the largest organ in the human body?
    The skin!
  • What is the main function of your skull?
    To protect the brain
  • Where is your skin the thickest?
    Feet, palm of hands
  • We need our ______ to move our bones.
    muscles
  • What type of muscles are in your stomach?
    smooth, involuntary
  • What are the 3 main functions of your skeletal system?
    movement, support and protection
  • What type of muscle is your heart?
    Cardiac, involuntary
  • What is the 2nd layer of our skin called?
    dermis
  • Muscles usually work in pairs. When one muscle contracts, the other muscle ________.
    relaxes.
  • Our muscular system is made up of...
    muscles
  • How many muscles does it take to smile?
    17
  • What are some ways to keep your muscular system healthy?
    eat healthy food, exercise, eat protein, etc.
  • How does sweating help protect us?
    It keeps us cool
  • What type of muscle is your bicep (arm muscle)?
    skeletal, voluntary
  • True or false: Teeth are bones
    False
  • What are the tiny holes in the dermis called?
    pores
  • How many bones does an adult have?
    206
  • What are the 3 main types of muscles?
    skeletal, smooth, cardiac
  • Our skeletal system is made up of..
    bones
  • What are some ways that the skin protects the body?
    Keeps germs out, keeps us cool, protects us from the sun
  • What bones protect the heart, liver and lungs?
    The ribcage, ribs
  • Where is your skin the thinnest?
    eyelids
  • What connects muscles to bones?
    tendons
  • Where is the smallest bone in your body?
    Ear