Skeleton Structure (AQA GCSE Physical Education (PE))
Revision Note
Author
Emma ArchboldExpertise
Biology
Structure of the Skeleton
One of the main roles of the skeleton is to help to provide a framework for movement
A joint is a connection between two or more bones that allows movement (in most cases - fixed joints do exist between the plates of the cranium)
The structure and position of bones of the skeletal system allows the movement to take place
The contraction of muscles pulls the bones to create movement. The skeleton is connected to the muscles to allow this to take place
There are different types of joints that allow different types of movement e.g. the elbow and the shoulder have different types of joints
The shape and size of the bones play an important role in their function
Long bones enable gross movement, which is a large-scale movement like running or standing up
Short bones enable finer, controlled movement such as articulation of the fingers
Flat bones, such as the ribs, protect organs from damage
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