Bursa
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- updated 27 Jul 2023:
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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.
Examples
According to location
According to aetiology
- deep bursae: present from birth
- superficial bursae: form shortly after birth
- adventitial bursae: acquired due to friction
Related pathology
-<p><strong>Bursae </strong>are small fluid-filled sacs lined by a <a href="/articles/synovial-membrane">synovial membrane</a> 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.</p><h4>Examples</h4><h5>According to location</h5><ul>-<li>-<a href="/articles/shoulder-bursae">shoulder bursae</a><ul>-<li><a href="/articles/subacromial-subdeltoid-bursa">subacromial-subdeltoid bursa</a></li>-<li><a href="/articles/subscapularis-recess">subscapularis recess</a></li>-<li><a href="/articles/subcoracoid-bursa">subcoracoid bursa</a></li>-<li><a href="/articles/coracoclavicular-bursa">coracoclavicular bursa</a></li>-<li><a href="/articles/supra-acromial-bursa">supra-acromial bursa</a></li>-</ul>-</li>-<li>-<a href="/articles/elbow-bursae">elbow bursae</a><ul>-<li>-<a href="/articles/olecranon-bursa">olecranon bursa</a> (can have several components)</li>-<li><a href="/articles/subcutaneous-bursa-of-medial-epicondyle">subcutaneous bursa of medial epicondyle</a></li>-<li><a href="/articles/subcutaneous-bursa-of-lateral-epicondyle">subcutaneous bursa of lateral epicondyle</a></li>-<li><a href="/articles/bursa-of-anconeus">bursa of anconeus</a></li>-<li><a href="/articles/bursa-at-origin-of-extensor-carpi-radialis-brevis">bursa at origin of extensor carpi radialis brevis</a></li>-</ul>-</li>-<li>-<a href="/articles/wrist-hand-bursae">wrist / hand bursae</a><ul>-<li><a href="/articles/palmar-ulna-bursa">palmar ulna bursa</a></li>-<li><a href="/articles/palmar-radial-bursa">palmar radial bursa</a></li>-</ul>-</li>-<li>-<a href="/articles/hip-bursae-1">hip bursae</a><ul>-<li><a href="/articles/iliopsoas-bursa">iliopsoas bursa</a></li>-<li><a href="/articles/gluteofemoral-bursa">gluteofemoral bursa</a></li>-<li><a href="/articles/trochanteric-bursa-1">trochanteric bursa</a></li>-<li><a href="/articles/subgluteus-medius-bursa">subgluteus medius bursa</a></li>-<li><a href="/articles/subgluteus-minimus-bursa">subgluteus minimus bursa </a></li>-<li><a href="/articles/obturator-externus-bursa">obturator externus bursa</a></li>-<li><a href="/articles/obturator-internus-bursa">obturator internus bursa</a></li>-<li><a href="/articles/ischiogluteal-bursa">ischiogluteal bursa</a></li>-</ul>-</li>-<li>-<a href="/articles/knee-bursae">knee bursae</a><ul>-<li><a href="/articles/deep-infrapatellar-bursa">infrapatellar bursa</a></li>-<li><a href="/articles/prepatellar-bursa">prepatellar bursa</a></li>-<li><a href="/articles/suprapatellar-bursa">suprapatellar bursa</a></li>-<li><a href="/articles/baker-cyst-2">Baker cyst</a></li>-<li><a href="/articles/pes-anserinus-bursa">pes anserine bursa</a></li>-<li><a href="/articles/medial-collateral-ligament-bursa">medial collateral ligament bursa</a></li>-<li><a title="Fibular collateral ligament-biceps femoris bursa" href="/articles/fibular-collateral-ligament-biceps-femoris-bursa">fibular collateral ligament-biceps femoris bursa</a></li>-</ul>-</li>-<li>-<a href="/articles/ankle-bursae">ankle bursae</a><ul>-<li><a href="/articles/retrocalcaneal-bursa">retrocalcaneal bursa</a></li>-<li><a href="/articles/subcutaneous-calcaneal-bursa">superficial retrocalcaneal bursa</a></li>-<li><a href="/articles/gruberi-bursa">Gruberi bursa</a></li>-</ul>-</li>-</ul><h5>According to aetiology</h5><ul>-<li>-<a href="/articles/deep-bursae">deep bursae</a>: present from birth</li>-<li>-<a href="/articles/superficial-bursae">superficial bursae</a>: form shortly after birth</li>-<li>-<a href="/articles/adventitial-bursae">adventitial bursae</a>: acquired due to friction</li>-</ul><h4>Related pathology</h4><ul>-<li><a href="/articles/bursitis">bursitis</a></li>-<li><a href="/articles/pigmented-villonodular-synovitis">pigmented villonodular bursitis</a></li>- +<p><strong>Bursae </strong>are small fluid-filled sacs lined by a <a href="/articles/synovial-membrane">synovial membrane</a> 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.</p><h4>Examples</h4><h5>According to location</h5><ul>
- +<li>
- +<a href="/articles/shoulder-bursae">shoulder bursae</a><ul>
- +<li><a href="/articles/subacromial-subdeltoid-bursa">subacromial-subdeltoid bursa</a></li>
- +<li><a href="/articles/subscapularis-recess">subscapularis recess</a></li>
- +<li><a href="/articles/subcoracoid-bursa">subcoracoid bursa</a></li>
- +<li><a href="/articles/coracoclavicular-bursa">coracoclavicular bursa</a></li>
- +<li><a href="/articles/supra-acromial-bursa">supra-acromial bursa</a></li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/elbow-bursae">elbow bursae</a><ul>
- +<li>
- +<a href="/articles/olecranon-bursa">olecranon bursa</a> (can have several components)</li>
- +<li><a href="/articles/subcutaneous-bursa-of-medial-epicondyle">subcutaneous bursa of medial epicondyle</a></li>
- +<li><a href="/articles/subcutaneous-bursa-of-lateral-epicondyle">subcutaneous bursa of lateral epicondyle</a></li>
- +<li><a href="/articles/bursa-of-anconeus">bursa of anconeus</a></li>
- +<li><a href="/articles/bursa-at-origin-of-extensor-carpi-radialis-brevis">bursa at origin of extensor carpi radialis brevis</a></li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/wrist-hand-bursae">wrist / hand bursae</a><ul>
- +<li><a href="/articles/palmar-ulna-bursa">palmar ulna bursa</a></li>
- +<li><a href="/articles/palmar-radial-bursa">palmar radial bursa</a></li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/hip-bursae-1">hip bursae</a><ul>
- +<li><a href="/articles/iliopsoas-bursa">iliopsoas bursa</a></li>
- +<li><a href="/articles/gluteofemoral-bursa">gluteofemoral bursa</a></li>
- +<li><a href="/articles/trochanteric-bursa-1">trochanteric bursa</a></li>
- +<li><a href="/articles/subgluteus-medius-bursa">subgluteus medius bursa</a></li>
- +<li><a href="/articles/subgluteus-minimus-bursa">subgluteus minimus bursa </a></li>
- +<li><a href="/articles/obturator-externus-bursa">obturator externus bursa</a></li>
- +<li><a href="/articles/obturator-internus-bursa">obturator internus bursa</a></li>
- +<li><a href="/articles/ischiogluteal-bursa">ischiogluteal bursa</a></li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/knee-bursae">knee bursae</a><ul>
- +<li><a href="/articles/deep-infrapatellar-bursa">infrapatellar bursa</a></li>
- +<li><a href="/articles/prepatellar-bursa">prepatellar bursa</a></li>
- +<li><a href="/articles/suprapatellar-bursa">suprapatellar bursa</a></li>
- +<li><a href="/articles/baker-cyst-2">Baker cyst</a></li>
- +<li><a href="/articles/pes-anserinus-bursa">pes anserine bursa</a></li>
- +<li><a href="/articles/medial-collateral-ligament-bursa">medial collateral ligament bursa</a></li>
- +<li><a title="Fibular collateral ligament-biceps femoris bursa" href="/articles/fibular-collateral-ligament-biceps-femoris-bursa">fibular collateral ligament-biceps femoris bursa</a></li>
- +</ul>
- +</li>
- +<li>
- +<a href="/articles/ankle-bursae">ankle bursae</a><ul>
- +<li><a href="/articles/retrocalcaneal-bursa">retrocalcaneal bursa</a></li>
- +<li><a href="/articles/subcutaneous-calcaneal-bursa">superficial retrocalcaneal bursa</a></li>
- +<li><a href="/articles/gruberi-bursa">Gruberi bursa</a></li>
- +</ul>
- +</li>
- +</ul><h5>According to aetiology</h5><ul>
- +<li>
- +<a href="/articles/deep-bursae">deep bursae</a>: present from birth</li>
- +<li>
- +<a href="/articles/superficial-bursae">superficial bursae</a>: form shortly after birth</li>
- +<li>
- +<a href="/articles/adventitial-bursae">adventitial bursae</a>: acquired due to friction</li>
- +</ul><h4>Related pathology</h4><ul>
- +<li><a href="/articles/bursitis">bursitis</a></li>
- +<li><a href="/articles/diffuse-tenosynovial-giant-cell-tumour">pigmented villonodular bursitis</a></li>
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