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What is a bursa?

Updated: 8/10/2023
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8y ago

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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.

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8y ago
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12y ago

Bursae is a small fluid-filled sac that provides a cushion between bones and muscles around a joint.

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9y ago

A bursa is a fluid-filled structure present between the skin and tendon or the tendon and bone. The bursa reduces friction between adjacent moving structures.

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