Lordosis - lumbar

Swayback; Arched back; Lordosis - lumbar

Lordosis is the inward curve of the lumbar spine (just above the buttocks). A small degree of lordosis is normal. Too much curving is called swayback.

Skeletal spine

The spine is divided into several sections. The cervical vertebrae make up the neck. The thoracic vertebrae comprise the chest section and have ribs attached. The lumbar vertebrae are the remaining vertebrae below the last thoracic bone and the top of the sacrum. The sacral vertebrae are caged within the bones of the pelvis, and the coccyx represents the terminal vertebrae or vestigial tail.


Lordosis is excessive curvature in the lumbar portion of the spine, which gives a swayback appearance.


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