Joints of Human Body | Body Movements | Class VI

The point where two bones meet is called a joint. It is responsible for different kinds of movements.

Joints are of three types:

  • ​Immovable or fixed joint: Joints in skull except the lower jaw bone, are immovable.
  • Movable joint: This type of joint provides a free movement of the body part.
    • Hinge joint: Such joints are present in the knee and elbow. These allow movement in backward and forward direction.
    • Ball-and-socket joint: A ball and socket joint is one in which the round end of a bone is into the cavity of another bone.
      The hip and shoulder joint are examples of ball and socket joint. This type of joint allow a rotational movement.
    • Pivot joint: Pivot joints allow rotation around an axis. The neck and forearm have pivot joint. It allow our neck forward and backward and from side to side.
    • Gliding joint: In a gliding joint, bones glide over one another. Present in the ankle and wrist, this joint allows movement from side and back and forth.
    • Partially movable joints: They are located in the vertebrae and pelvis. They allow bending and partial movement.
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