1. They are characterized by an inwardly directed spine in the female corpus bursae . 2. In my books and experience, there are no vertebral bursae in humans. 3. The pouches on the diagram labeled as 2 are the paired cloacal bursae . 4. Many species brood developing larvae in the bursae , effectively giving birth to live young. 5. Spinal discs are not bursae , as they cusion the interface of bone and bone. 6. Some patients have intra-articular bodies resting in stable positions within joint recesses or bursae . 7. The ostium bursae , or genital opening, of the female is angled to the left. 8. Two filmy sac-like structures called bursae permit smooth gliding between bone, muscle, and tendon. 9. The number 3 shows the inner lining of the cloacal bursae , which is made of long fimbriae. 10. To accomplish cloacal respiration, the turtles pump water in and out of their pouches, which are called cloacal bursae .