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385231
GCSE PE - 8
Descrição
GCSE GCSE PE Mapa Mental sobre GCSE PE - 8, criado por lydia_ward em 24-11-2013.
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lydia_ward
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lydia_ward
quase 11 anos atrás
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Resumo de Recurso
GCSE PE - 8
Function of the Skeleton
Protection
The Ribs protect the Heart and Lungs and the Cranium protects the Brain.
Shape
It gives framework.
Eg. Basketball player - long, thin skeleton.
Eg. Jockey - small, thin skeleton.
Support
Firm, rigid and keeps us upright.
Movement
Skeleton has 'anchor point' to which muscles attach and act as levers.
Long bones help creates the leverage to apply the force.
Blood Production
Red and white blood cells are produced in the long bones.
Bones
Long Bones
Humorous and Femur.
Shot Bones
Carpals and Tarsals.
Flat Bones
Cranium, Scapula and Sternum.
Irregular Bones
Patella and Vertebrae (odd shaped bones)
Sections of the Vertebrae
1. Cervical
7 vertebrae forms the neck and allows movement at the top of the spine.
2. Thoracic
12 vertebrae. 10 are attached to ribs and help movement whilst breathing.
3. Lumbar
5 large and robust vertebrae. This area allows most movement.
4. Sacrum
5 vertebrae which become fused together in adulthood.
They form part of the pelvic girdle.
5. Coccyx
4 vertebrae here, all fused together.
Development of Bones
Bones start off as cartilage and then become bone by the process of Ossification.
Ossification is the development of bone from cartilage. It occurs throughout childhood until adulthood.
Bones have a tough outer layer called the 'Periosteum'.
As development continues there are 3 centres of ossification:- in the 'Diaphysis' (middle) and 'Epiphyses' (end).
Diaphysis is the middle of the bone (shaft).
Epiphyses is at the end of the bone (end section).
Epihysis is on the top of the bone (growth plate).
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