| trefoil tendon | A three-lobed fibrous sheet occupying the centre of the diaphragm. Synonym: centrum tendineum diaphragmatis, trefoil tendon. Central tendon of perineum, the fibromuscular mass between the anal canal and the urogenital diaphragm in the median plane; midline episiotomies extend into this structure. Synonym: centrum tendineum perinei, perineal body, Savage's perineal body. (05 Mar 2000) |
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| Zinn's tendon | A fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure; it gives origin to the four rectus muscles of the eye and is partially fused with the sheath of the optic nerve. Synonym: annulus tendineus communis, Zinn's ligament, Zinn's ring, Zinn's tendon. (05 Mar 2000) |
| adventitious bursa | <anatomy> A bursa-like cyst formed between two parts as a result of friction. (05 Mar 2000) |
| anserine bursa | <anatomy> The bursa between the tibial collateral ligament of the knee joint and the tendons of the sartorius, gracilis, and semitendinosus muscles. Synonym: bursa anserina, tibial intertendinous bursa. (05 Mar 2000) |
| anterior tibial bursa | <anatomy> The small bursa between the medial surface of the medial cuneiform bone and the tendon of the tibialis anterior. Synonym: bursa subtendinea musculi tibialis anterioris, anterior tibial bursa. (05 Mar 2000) |
| bicipitoradial bursa | <anatomy> The bursa between the tendon of the biceps brachii muscle and the anterior part of the tuberosity of the radius. Synonym: bursa bicipitoradialis. (05 Mar 2000) |
| Boyer's bursa | <anatomy> A bursa between the posterior surface of the body of the hyoid bone and the thyrohyoid membrane. Synonym: bursa retrohyoidea, Boyer's bursa, bursa of hyoid, subhyoid bursa. (05 Mar 2000) |
| Brodie's bursa | <anatomy> Medial subtendinous bursa of gastrocnemius muscle. Synonym: bursa of semimembranosus. (05 Mar 2000) |
| bursa | <anatomy> A tissue space (fibrous sac) that is lined with synovial membrane (joint tissue) and contains a small quantity of synovial fluid (joint fluid). Bursas are found in between tendon and bone, skin and bone and muscles. They function to facilitate fluid movement. (27 Sep 1997) |
| bursa achillis | An alternate term for bursa of tendo calcaneus. (05 Mar 2000) |
| bursa anserina | <anatomy> The bursa between the tibial collateral ligament of the knee joint and the tendons of the sartorius, gracilis, and semitendinosus muscles. Synonym: bursa anserina, tibial intertendinous bursa. (05 Mar 2000) |
| bursa aspiration | A procedure whereby a needle is inserted into a bursa for the purpose of withdrawing fluid (for diagnostic purposes) or injecting medications (corticosteroids or a local anaesthetic). See: bursitis. (27 Sep 1997) |
| bursa bicipitoradialis | <anatomy> The bursa between the tendon of the biceps brachii muscle and the anterior part of the tuberosity of the radius. Synonym: bursa bicipitoradialis. (05 Mar 2000) |
| bursa cubitalis interossea | An inconstant bursa located between the tendon of the biceps and the ulna or the oblique cord. Synonym: bursa cubitalis interossea. (05 Mar 2000) |
| bursa fabricii | The bursa of Fabricius in poultry, a blind saclike structure located on the posterodorsal wall of the cloaca; it performs a thymus-like function. Synonym: bursa of Fabricius. (05 Mar 2000) |