The function of a bursa is to

A) provide support for a weak joint.
B) provide a fluid-filled cushion that reduces friction.
C) increase the articulating surface at a joint.
D) bind ligaments to bones.
E) produce fluid.

Bursa

A fluid-filled sac that reduces friction and provides cushioning between bones, tendons, and muscles near joints.

Fluid-filled Cushion

A protective layer or structure within the body comprised of fluid, providing support or absorbing shock, common in joint and tissue spaces.

Articulating Surface

The surface of a bone that makes contact with another bone, allowing for joint movement.