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Home > All Images > 1999 > January > 13 Jan 1999

Images Dated 13th January 1999

Choose from 8 pictures in our Images Dated 13th January 1999 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Coloured X-ray of lumbar vertebrae of the spine Featured 13 Jan 1999 Image

Coloured X-ray of lumbar vertebrae of the spine

Lumbar spine. Coloured X-ray of four lumbar vertebrae of the human spine, seen in antero- posterior view. Five lumbar bones are found in the lower back, with those here being: L1 (at top) to L4 (at bottom). Part of L5 which articulates with the sacrum of the pelvis is seen below L4. The lumbar vertebrae are the largest of the un- fused vertebrae in the backbone. Each vertebra comprises a wide disc-like body, with transverse bony processes projecting out sideways. These bony processes are muscle attachment points. Between each vertebra is a cartilaginous disc. A canal inside each vertebra accommodates the spinal cord. The spine is made up of 33 vertebrae