Skeletal system

Cards (22)

  • Bone is made of compact and spongy bone
  • Bones are made of calcium, phosphorus, sodium, and other minerals as well as the protein collagen.
  • The four different classifications of bones are long, short, flat, irregular
  • The human body has 206 bones in total, including the bones in the hands, feet, and spine.
  • Long bones produce blood cells
  • Short bones specialise in fine movement
  • Flat bones are used for protection
  • Irregular bones work together and act like a shock absorber
  • Joints are found where two bones meet in the body
  • Cartilage is the smooth material covering the ends of bones
  • Synovial fluid allows bones to slide over eachother
  • Ligaments hold bones together
  • Types of joints are hinge, ball and socket, pivot, and saddle
  • Hinge joints move only in one plane
  • In a ball and socket joint, which bone can make all kinds of movements?
    The ball shaped one
  • Elbows and knees are examples of hinge joints
  • Shoulders and hips are examples of ball and socket joints
  • The neck to the head is an example of a pivot joint
  • Saddle joints allow movement in two directions
  • Your carpels are an example of saddle joints
  • Muscles are attached to bones by tendons
  • In antagonistic pairs, one muscles contracts and the other relaxes