Fluid-Filled Sacs That Cushion Synovial Joints are Called

Question

Fluid-filled sacs that cushion synovial joints are called
A)fat pads.
B)articular discs.
C)bursae.
D)menisci.
E)diarthroses.

Accepted Answer

Fluid-filled sacs that cushion synovial joints are called bursae. Fat pads are also found near synovial joints but they do not have a fluid-filled cavity. Articular discs and menisci are also found in synovial joints but they are fibrocartilaginous structures that serve to improve the congruence of joint surfaces, not to cushion or protect them. Diarthroses simply refer to synovial joints as a group and do not specifically describe any structures within them.