body system

    Subdecks (8)

    Cards (121)

    • Muscular system
      Organs that work together to allow movement
    • Parts of the body with muscles
      • Legs
      • Arms
      • Fingers
      • Stomach
    • Muscles
      • Some are hard, some are soft
      • Covered by bones
    • Muscles allow us to move, bones cannot move without muscles
    • The muscular system is made up of all the muscles in the body
    • Muscle
      Consists of fibers or muscle cells held together
    • Muscle types
      • Large
      • Long
      • Small
      • Short
    • Muscles make up 40% of total body weight
    • Tendon
      Tough cord that connects muscle to bone
    • Tendons are made of tough protein fibers called collagen
    • Muscle contracts
      Tendon pulls bone, causing it to move
    • The face has 50 muscles, 17 are used to smile, 46 to frown
    • Muscles
      • Can contract and become short
      • Can relax and return to original length
      • React to signals from the brain
    • Muscle types
      • Cardiac (involuntary, in heart)
      • Smooth (involuntary, in digestive system)
      • Skeletal (voluntary, move bones)
    • Skeletal muscles make up large part of arms, legs, chest, abdomen
    • Bones, muscles, joints, ligaments and tendons work together
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