Tree of Life, Djed, and Ankh - "Ankh" - symbol of life - thoracic vertebrae of a bull, "Djed" - symbol of stability - base or sacrum of a bull's spine, "Was" - symbol of power and dominion - a staff made from a dried bull's penis.
Osteoporosis Model | Impressive didactic model for comparing osteoporotic and normal thoracic vertebrae. Ideal for medical studies and patient consultation. The 11th and 12th thoracic vertebrae are shown. http://www.universalmedicalinc.com/3B-Scientific-Osteoporosis-Model-p/a95.htm
Richard III's Skeleton: Whole skeleton showing curvature of spine at 10th and 11th thoracic vertebrae... scoliosis. This would not have given him the hump and horrid deformities of Shakespeare but his shoulder on one side would have been higher.