A joint can be defined as the region where two or more bones contact and move freely. Joints are further classified based on their structure, functions, mobility and their composition.
Fibrous joint, cartilaginous joint, synovial joint, facet joint, ball and socket joints, hinge joints, pivot joints, condyloid joints and saddle joints are different types of joints.
Different Types Of Joints
The ball and socket joint is a movable joint, which allows backwards, forward, sideways, and rotating movements. Shoulder and hip joints are examples of Ball and socket joints.
A ball and socket joint comprises bone forming a round head or cup-like or socket-like structure,whereas the other forms a ball-like structure, which fits in the cup. The bone has a ball, or head can move freely in this joint in many directions. These joint is also found between the glenoid cavity of the pectoral girdle and head of the humerus.
A cartilaginous layer known as the articular cartilage is present on the head of both bones. A cartilaginous layer known as the articular cartilage is present on the head of both bones. The cavity present between the bones’ heads is called the synovial cavity, filled with synovial fluid.
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