The Skeletal System
- Created by: lauraw2002
- Created on: 22-04-18 12:24
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- The Skeletal System
- Skeleton Functions
- Shape/ Structure
- 1) The skeleton is a rigid bone frame for the rest of the body. Our shape is mainly due to our skeleton.
- 2) The skeleton supports the soft tissues like skin and muscle
- 3) This helps you to have good posture, which is essential in loads of sports
- 4) E.g. good posture aids performance in gymnastics.
- Protection
- 1) Bones are very tough - they protect vital organs like the brain, heart and lungs
- 2) This allows you to perform well in sport without fear of serious injury
- 3) E.g. the skull protects the brain so you can head a football.
- Movement
- 1) Muscles, attached to bones by tendons, can move bones at joints.
- 2) This movement is essential for good performance in sport
- 3) there are different types of movement at various joints, which are important for different sports
- Making blood cells and platelets
- 1) Some bones contain bone marrow, which makes the components of blood - platelets and red & white blood cells.
- 2) Red blood cells are important during exercise - they transport oxygen to muscles.
- 3) Athletes with more red blood cells perform better - more oxygen is delivered to muscles
- Mineral Storage
- 1) Bones store minerals like calcium and phosphorus.
- 2) These help with bone strength - so you are less likely to break a bone
- 3) They're needed for muscle contractions.
- Shape/ Structure
- Types of bones
- Long Bones - E.g. humerus in arm. Are strong and are used by muscles to assist movement
- Flat Bones - E.g. Ribs. Protect internal organs.Their broad surface allows muscle attachment
- Short Bones - E.g. Tarsals in the foot. Support the weight of the body - they are weight-bearing.
- Irregular Bones - E.g vertebrae of the spine. are suited to protection and muscle attachment
- Skeleton Functions
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