Different Types (Shapes) of Joint
- Created by: Gabby
- Created on: 06-05-13 17:48
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- Different Types (Shapes) of joint
- BALL AND SOCKET JOINT
- e.g. Hips and Shoulders
- Movement around three axes:
- Extension and Flexion
- Inward rotation and outward rotation
- Adduction/ Abduction
- A hollow cup into which the rounded end of a bone can fit.
- Wide range of movement:
- In all directions.
- Joint stability depends on:
- The size of the cup 'socket'.
- Wide range of movement:
- Synovial Joint
- HINGE JOINT
- e.g. knee and ankle
- Ankle
- interphalangeal
- Metacarpal-phalangeal
- Movement in one plane only:
- Extension (stretching)
- Flexion (Bending)
- Extension (stretching)
- The convex surface of one bone fits against the concave surface of the other.
- Clasping arrangement.
- Synovial Joint
- e.g. knee and ankle
- PIVOT JOINT
- Movement round one axis only:
- Inward rotation
- Pronation
- Outward rotation
- Supination
- Inward rotation
- Bones rotate around each other.
- Sometimes called:
- A swivel joint
- The radius and the ulna.
- Sometimes called:
- e.g. the lower two arm bones
- The radius and the ulna.
- Synovial Joint
- Movement round one axis only:
- The body is designed:
- Each joint moves in its own specifically designed way.
- Minimal muscular effort.
- Each joint moves in its own specifically designed way.
- Synovial Joint:
- More mobile than the other two:
- Fibrous
- Cartilaginous
- Synovial Capsule
- Encloses the whole joint
- Made up of very strong:
- Fibrous tissue
- 'Cushion' for the joint.
- Fibrous tissue
- Lined with a layer of tissue:
- SYNOVIAL MEMBRANE
- Produces Lubrication for the joint.
- SYNOVIAL FLUID
- Secreted when the joint is required to perform strenuous activity.
- e.g. during exercise- DANCING
- Secreted when the joint is required to perform strenuous activity.
- SYNOVIAL FLUID
- Produces Lubrication for the joint.
- SYNOVIAL MEMBRANE
- More mobile than the other two:
- BALL AND SOCKET JOINT
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