Question
What is a synovial joints?
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Answer
A synovial joint is a joint which makes connection between two bones consisting of a cartilage lined cavity filled with fluid, which is known as a diarthrosis joint. These are the most flexible type of joint between bones, because the bones are not physically connected and can move more freely in relation to each other. Synovial joints have four main distinguishing features.
| Feature | Structure | Function |
| Ligament | A band of strong fibrous tissue. | To connect bone to bone. |
| Synovial fluid |
A slippery fluid with the consistency of egg-whites that is contained within the joint cavity. |
To reduce friction between the articular cartilage in the joint. |
| Articular cartilage |
Glassy-smooth cartilage that is spongy and covers the ends of the bones in the joint. |
To absorb shock and to prevent friction between the ends of the bones in the joint. |
| Joint Capsule |
A tough fibrous tissue that has two layers, with the fibrous capsule lying outside the synovial membrane. |
The fibrous capsule helps to strengthen the joint, while the synovial membrane lines the joint and secretes synovial fluid. |
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2. Chemical compound which conducts electricity when in aqueous state.
5. Atoms that have an electric charge.
7. A piece of metal through which an electric current enters or leaves in a liquid or gas.
Down :
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4. A process in which a chemical change especially decomposition of a chemical compound is brought about by passing an electric current through a solution.
6. Ions having a negative charge formed by the gain of electrons.
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