How do ligaments work to allow synovial joints to move?

Joints hold the skeleton together or intact and support movement or action. The bones in a synovial joint are connected by ligaments. It is composed of different type of tissue and are tough, slightly elastic and fibrous. They connect bone to bone and help keep  the joint together.

Explanation:

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this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.