A spine of a human being is made up of 33 vertebrae, discs, spinal cord and nerves, ligaments, and muscles. The spinal column is further divided into four regions, and the vertebrae within each region are numbered. The four regions in which your spinal column is divided are as follows: ...
The lumbar spine is composed of the lower 5 vertebrae, which have been numbered L1–L5. The lowest vertebra of the lumbar spine (L5) is connected to the top of the sacrum, which is a triangular bone present at the base of the spine fitting into the two pelvic bones. In some cases,...
Vertebrae are the33 individualbones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused. ...
2 plates of entire spinal column, in front and profile impacts, allowing the spinal vertebrae to be numbered and showing the physiological curvatures (cervical lordosis, thoracic kyphosis, lumbar lordosis, sacral kyphosis (sacral)). Figure 2 - Anatomy - Vertebral column - [UMLS:C1962945] - Ante...
(lower back) section of the spine bears most of the weight of the body. There are 5 lumbar vertebrae numbered L1 to L5. The vertebrae are separated by cushiony discs, which act as shock absorbers preventing the vertebrae from rubbing together. The outer ring of the disc is called the ...
The thoracic spine is defined by the articulation of the ribcage with the spine. There are 12 thoracic vertebrae numbered T1 to T12. They are anteriorly oriented with a kyphotic curve. Due to the semirigid attachments with the thoracic cage, the motion of the thoracic spine is limited in si...
There are five lumbar roots, which exit under the like-numbered pedicle. The lumbosacral junction is a common site of bony anomaly, with the frequent presence of transitional segments, which in part resemble lumbar vertebrae, but also have sacral characteristics. There may be pseudoarticulations, ...
The entire spine can be surveyed with subminute, submillimeter in-plane resolution MR imaging. Cervical, thoracic, and lumbar vertebrae and disks can be readily identified and definitively numbered by means of visual inspection or semiautomated computer algorithm. (c) RSNA, 2006....
The WBB staging system involves dividing the spine segments with the tumor into 12 radiating zones (numbered 1 to 12 in a clockwise fashion). This classification also takes into account the transverse plane and five layers (A to E, from the paravertebral extraosseous region to the area of ...
A sleeve fits over the guide and against the stop preparatory to being positioned between the two adjacent vertebrae with the insertion tool. In yet a further aspect of the invention, the implant includes central body and first and second wings and a means for selectively positioning one of ...