what bursae is found when one tendon crosses another tendon
bursae and tendon sheaths he;p to reduce friction during joint movement
bursae are flattened fibrous sacs, while tendon sheaths are elongated fibrous sacs.
The membrane type that is in joints, bursae and tendon sheaths is described as synovial. Synovial membrane is also referred to as stratum synoviale.
They act as "ball bearings" to reduce friction between bones. Bursae are flattened fibrous sacs lined with synovial membrane and are commonly found where ligaments, muscles, bones, or tendon rub together. A tendon sheath is essential an elongated Bursae that completely wraps around tendons subjected to friction.
A bursa is a sac filled with fluid to protect the tendons (plural bursae).A bursa is an expansion of synovial membrane that is found at sites of potential friction, ie. between your Achilles tendon and your calcaneus (heel bone).Bursae are lubricated on their inner walls by synovial fluid. By rolling between two structures, bursae keep friction to a minimum and prevent damage.
The synovial membrane is found on the cavities of joints, tendon sheaths and bursae. It is a layer of connective tissue that makes the synovial fluid, which is used for lubrication.
Bursae are found around almost every major joint of the body.
The difference between a bursa and a tendon is that a bursa is a synovial pocket insterted between a tendon and a bony prominance. It is not bound by a deep fascia or retinaculum. So from top to bottom a visual would be (tendon, synovial fluid, bone). A tendon synovial sheath, on the other hand, is bound by a deep facia or retinaculum and the synovial fluid almost completely surrounds the tendon with the exception of a small gap called the mesotendon.
Bursae
The Latin plural is bursae. The English plural is bursas.
Bursae is NOT found around blood vessels, it may be connected to synovial join cavity or separate from it.They form where tendon or ligament rubs against other tissues, they may appear deep to the skin, covering a bone or lying within other connective tissueexposed to friction or pressure.They aid in reducing friction and act as shock absorbers.Bursae that develope in abnormal locations, or because of abnormal stresses are called adventitious bursae.