CTOs are usually not considered desirable by collectors, but, with some issues of stamps, postally used examples are very hard to obtain; and some catalogues like Scott's will list values for CTOs and place a premium on postally used copies.
The vertebral body is the main part of the bone in the spinal column. Between these areas of the vertebrae are the intervertebral discs, which support the vertebrae above and cushion the area between the bones. The major portion of the vertebra faces the body, in front of the spinal cord, in humans.he vertebral body is the main part of the bone in the spinal column. Between these areas of the vertebrae are the intervertebral discs, which support the vertebrae above and cushion the area between the bones. The major portion of the vertebra faces the body, in front of the spinal cord, in humans.
L1 Vertebra â definition and function. Sections. The L1 vertebra is located in the lumbar spine, which is in the lower back portion of the spinal column. Most people have five vertebrae in the lumbar spine, which connects the middle of the back to the pelvis or sacrum.he lumbar region is responsible for the support and stability of most of the bodyâs weight. The thoracic spine, located just above the L1 vertebra, does not have much mobility. This means that the L1 vertebra experiences more weight and pressure when bending and twisting than the other vertebrae in the lumbar spine.