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In this topic, you will develop knowledge and understanding of the key body systems and how they impact on health, fitness and performance in physical activity and sport through the following content. The topic guide will be linked here.

The Musculo-Skeletal System

The Musculo-skeletal

System

The Skeletal System

The skeleton serves five major functions:

1) Protection - some bones protect vital organs, for example, the cranium protects the brain.

2) Muscle attachment - bones are attached to muscles (thanks to tendons) and are used as levers for movement.

3) Blood cell production - platelets, red and white blood cells are produced in the spongey bone.

4) Storage of calcium and phosphorus - which is contained in the medullary cavity.

5) Movement - the joints in the skeleton works with our muscles to make movement.

These are the names of the bones you must know:

The Skeletal System

You must also know the regions of the vertebral column:

The Vertebral Column

The Vertebral Column

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The Vertebral column has 5 regions:

1) The cervical vertebrae, made up of 7 bones (your neck).

2) The thoracic vertebrae, made up of 12 bones (your upper back).

3) The lumbar vertebrae, made up of 5 bones (your lower back).

4) The sacrum, made up of 5 fused bones.

5) The coccyx, made up of 4 fused bones (your tailbone).

The sacrum and coccyx are both located in the pelvis.