Bursa

(bur’-sal i) [bursa, a purse]. A small sac interposed between parts that move upon one another. B. Pharnygea, a blind pouch projecting upward from the pharynx toward the occipital bone. B., Popliteal, a bursa situated in the popliteal space between the tendon of the semi mem bra nos us and the tendon of the inner head of the gastrocnemius, where they rub against each other. B., Prepatellar, abursa situated over the patella and the upper part of the patellar ligament. B., Synovial, found between tendons and bony surfaces. 162