A saclike cavity located between joints and reducing friction is best described as what?

The description of a saclike cavity located between joints and reducing friction aligns perfectly with the function and structure of a bursa. Bursae are small, fluid-filled sacs that act as cushions between bones and tendons or muscles around your joints. They help to reduce friction and allow for smooth movement in the joints. The presence of bursae is particularly important in areas of the body that experience a lot of movement or pressure, such as the shoulders, knees, and hips.

In contrast, tendons connect muscles to bones and assist in movement but do not serve to reduce friction between joints. Cartilage, while also found in joints, provides a smooth surface for joint movement and acts as a shock absorber but is not a saclike structure. Ligaments connect bones to other bones and help stabilize joints but are not designed specifically to reduce friction. Therefore, the functions and characteristics of a bursa are distinctly aligned with the question's requirement of a saclike cavity that reduces friction.