. Physiology, experimental and descriptive . e twelve rib-supporting vertebrae are the Thoracic ver-tebrae. The next five are the Lumbar. The Sacrum is composed offive vertebrae grown together, and the remaining four are com-bined in the Coccyx. Let the eye slowly review the whole spinal column, notingwhat the vertebrae have in common. Note also their differ-ences. In most articulated skeletons there are pads of felt be-tween the vertebrae. These take the place of the Inter-ver-tebral Cartilages, which are a form of connective tissue, possess-ing the elasticity of cartilage and the toughness o
. Physiology, experimental and descriptive . e twelve rib-supporting vertebrae are the Thoracic ver-tebrae. The next five are the Lumbar. The Sacrum is composed offive vertebrae grown together, and the remaining four are com-bined in the Coccyx. Let the eye slowly review the whole spinal column, notingwhat the vertebrae have in common. Note also their differ-ences. In most articulated skeletons there are pads of felt be-tween the vertebrae. These take the place of the Inter-ver-tebral Cartilages, which are a form of connective tissue, possess-ing the elasticity of cartilage and the toughness of fibrousconnective tissue, such as ligament and tendon. These inter-vertebral cartilages serve both to keep the vertebrae apartand to hold them together. When we bend the shoulders tothe right, the right edges of these cartilages are compressed, LUMBAR VERTEBRA. 351 a,nd the left edges are stretched, as a piece of india rubberwould be if it were glued between the ends of two spools,and the whole were slightly bent. Body- Transverse ProceGE. Neural RingAnterior View of Lumbar Vertebra. Body.
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