Joints
Joints
A joint or articulation (/ɑːrtɪkjʊˈleɪʃən/; from Latin articulatio) is the connection made between bones in the body which link the skeletal system into a functional whole. They are constructed to allow for different degrees and types of movement.
Etymology
The term "joint" is derived from the Latin junctio, meaning a joining or a connection. The term "articulation" is derived from the Latin articulatio, meaning a separation into joints.
Types of Joints
There are several types of joints, classified both structurally and functionally:
- Synovial joint: These are the most common and most movable type of joint in the body of a mammal.
- Fibrous joint: These are joints connected by fibrous tissue, consisting mainly of collagen.
- Cartilaginous joint: These joints occur where the connection between the articulating bones is made up of cartilage.
Related Terms
- Arthritis: A general term for conditions that cause joint inflammation.
- Ligament: The fibrous tissue that connects bones to other bones.
- Tendon: A flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone.
- Bursa: A fluid-filled sac or saclike cavity, especially one countering friction at a joint.
External links
- Medical encyclopedia article on Joints
- Wikipedia's article - Joints
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