11. The underside of the second sacral vertebra has an angular longitudinal keel. 12. Numerous sacral objects that were discovered in this layer support this theory. 13. The pelvis was connected to a sacrum formed by seven sacral vertebrae. 14. The sacrum is strengthened through an additional fourth sacral vertebra. 15. He painted sacral pieces and Slovak landscapes and Slovak personalities. 16. The five sacral vertebrae have not yet fused into a real sacrum. 17. The pelvis was attached to four sacral vertebrae with short sacral ribs. 18. The pelvis was attached to four sacral vertebrae with short sacral ribs. 19. Five sacrals are present, those of the middle being clearly larger. 20. Lumbosacral trunk and sacral plexus palsies are common injury patterns.