A+P - skeletal system.

• A1.

  Process of Bone Growth.

  • Bone is a living organ that is continuously being reshaped through a process called remodelling​.
  • Ossification is the process in which bones are formed​.
  • Throughout this process parts of bone are reabsorbed so that unnecessary calcium is removed.
  • This is done by osteoclasts 'chewing' or breaking down old bone, and osteoblasts building new bone.
• A1.

  Process of Bone Growth.

  • Bones start as cartilage when we are born​
  • The ends of each long bone contain growing areas-or plates- which allow the bone to grow longer​
  • This continues throughout childhood until they reach full maturity​
  • These areas are called the epiphyseal plates and allow the long bones to extend​
  • Once a long bone is fully formed, the head- or end of each bone- fuses with the main shaft (diaphysis) to create the epiphyseal line
• A4.

  Acute Responses to Exercise (Immediate).

  • Producing more synovial fluid in the synovial joints​
  • Joints are more lubricated and can protect the bones during the demand of exercise​
  • The fluid will become less viscous (more fluid) and the range of movement increases​
  • The increase in synovial fluid also provides increased nutrients to the articular cartilage
• A4.

  Acute Responses to Exercise (Immediate/short term).

  • Increased uptake of minerals within the bone​
  • The bone becomes stronger and denser when you exercise regularly​
  • The body absorbs more minerals such as calcium which will increase your bones density
• A5.

  Adaptations to the skeletal system to exercise.

  • Your skeletal system will adapt to the pressure put onto it. Exercise will increase your bone mineral density and over time this will result in stronger bones which will be more resistant to the forces found in sport such as kicking, jumping and running​
• A5.

  Adaptations of the Skeletal System to Exercise.

  • Long term physical activity will also increase the strength of ligaments which attach the bones together at synovial joints. When you exercise as part of a training programme, your ligaments will stretch a little further than normal and as a result will become more pliable over time, resulting in increased flexibility