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Bursae are small fluid-filled sacs lined by a synovial membrane with an inner capillary layer of synovial fluid. It provides a cushion between bones and tendons and/or muscles around a joint. This helps to reduce friction between the bones and allows free movement. They may or may not communicate with the joint space.


According to location
According to etiology

Related pathology

Terms used in radiology
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Article information

rID: 10205
Section: Anatomy
Synonyms or Alternate Spellings:
  • Bursae

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Cases and figures

  • Figure 1: bursa
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  • Figure 2: knee bursae
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