Assertion: bursa | /r/HasProperty | small sac
Facets:
Source sentences:
text: A bursa is a small sac that secretes a lubricating liquid called synovial fluid which reduces friction between tissues, acts as a cushion between the muscles, tendons, and bones, and helps lubricate the joints to move freely.
text: Bursitis is inflammation of a bursa, a small sac that function to reduce friction between bone and soft tissue – there are 160 bursae in the body
text: A bursa is a small sac, usually filled with fluid, that acts as a cushion between bones and soft tissues, says the American Academy of Orthopaedic Surgeons 1.