skeletal system

• a synovial joint is a joint that allows a wide rage of movement and has a joint capsule enclosing it
• what are the synovial joints?

  ball and socket, and hinge
• what do ligaments do?

  connect the bones to restrict how much the bones move and maintain stability
• what do tendons do?

  attaches the muscles to bone to allow bones to move when muscles contract
• what is cartilage?

  it acts as a cushion between bones preventing damage during joint movement
• the ends of the bones are covered with cartilage and are shaped so that they fit together and can move smoothly
• the synovial membrane releases synovial fluid into the joint capsule to lubricate the joint allowing it to move more easily
• what joint movement can a hinge joint perform?

  Flexion and extension
• what joint movement can a ball and socket joint perform?

  Rotation, flexion, extension, abduction, adduction, and circumduction