Cartilage covers the end of bones in joints to provide shock absorption during movement. The synovium is the membrane that surrounds the joint and is filled with synovial fluid, which provides nutrients and oxygen to the cartilage.
Update Date 9/8/2014
Updated by: C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.