Skeletal system
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?- Created by: owenevans1998
- Created on: 16-03-15 17:54
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- Skeletal system
- function
- support
- skeleton is a frame
- aid (for movement)
- muscleattacheto bones
- muscle contracts = pull the bones for movement
- movement= at the joints
- bones also act as levers =increase force/speed of movment
- support
- joints
- where 2 or more bones meet = where movement can occur
- Hinge joints = knee + elbow
- movement= flexion+ extension
- Ball and socket joints hip/shoulder
- Movement -flexion extension rotation abduction adduction
- Hinge joints = knee + elbow
- Flexion
- angle at the joint decreases bones forming the joints move closer together
- bicep curl hamstrin curl
- angle at the joint decreases bones forming the joints move closer together
- extension
- angle at the joint increases bones forming the joint they move away from each other
- basketball ball shot
- angle at the joint increases bones forming the joint they move away from each other
- abduction
- movement away from the midline
- splits star jump
- movement away from the midline
- adduction
- movement towards the midline
- tennis forearm stroke
- movement towards the midline
- rotation
- movement of the bone at the joint around its own axis =biggest range of movement
- front crawl
- movement of the bone at the joint around its own axis =biggest range of movement
- where 2 or more bones meet = where movement can occur
- function
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