Bursitis is characterized by which of the following?

Bursitis is specifically characterized by the inflammation of the bursae, which are small, fluid-filled sacs that provide cushioning between bones, tendons, and muscles around joints. These bursae act as a protective layer, helping to reduce friction and facilitate movement. In the context of joint function, bursitis is often related to repetitive motion or increased pressure on the affected area, leading to pain and swelling.

The option referring to the inflammation of the coverings of the muscles and tendons at a joint accurately describes bursitis, as these coverings help to reduce friction and inflammation in areas where tendons or muscles cross over bony structures. Understanding the role of bursae in joint health is crucial for recognizing how bursitis can impact movement and the activities of daily living.