PE - Bones Mindmap
- Created by: jesssherman
- Created on: 25-01-17 10:50
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- Bones
- The Skeleton
- There are over 200 bones in the body
- Functions of the skeleton
- Protection - the cranium and ribs protect the brain and vital organs in the chest.
- Shape - gives shape to the body and makes you tall or short.
- Support - holds your vital organs in place when playing sport. The vertebral column holds the body upright.
- Movement - muscles are attached to bones, which are jointed. When the muscles contract the bones move.
- Blood production - red blood cells (to carry oxygen) and white blood cells (to protect against infection) are produced in the bone marrow of some bones.
- Joints
- A joint is where 2 or more bones meet
- Types of synovial joints
- Cartilage reduces friction. Acts as a shock absorber
- Synovial fluid lubricates the joint.
- Synovial membrane produces synovial fluid.
- Tendon joins muscle to bone enabling movement.
- Ligament joins bone to bone, stabilising the joint.
- Limbs move in different directions using joint actions.
- Types of bones
- Long- Movement, to generate strength and speed
- E.g. Femur, humerus
- Short- Shock absorption spreading load
- E.g. Carpals, tarsals
- Flat (plate)-Protection of vital organs, attachment of muscles to help movement
- E.g. Ribs, cranium
- Irregular- Provide shape, protection
- E.g. Vertebrae, face
- Long- Movement, to generate strength and speed
- The Skeleton
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