Definition of Vertebra
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).Source: MedTerms™ Medical Dictionary
Last Editorial Review: 8/28/2013
Medical Dictionary Definitions A - Z
Search Medical Dictionary
Find out what women really need.