Definition of Vertebra

Reviewed on 3/29/2021

Vertebra: A vertebra is one of 33 bony segments that form the spinal column of humans. There are 7 cervical, 12 thoracic, 5 lumbar, 5 sacral (fused into one sacrum bone) and 4 coccygeal (fused into one coccyx bone).


Heart Disease: Causes of a Heart Attack See Slideshow

Health Solutions From Our Sponsors