centrum of a vertebra

cen·trum of a ver·te·bra

the ossification center of the central mass of the body of a vertebra. [Usage note: The term is often erroneously used as a synonym for the body of a vertebra; however, the centrum is less than the body, the body including the anteriormost parts of the neural arches and the neurocentral joint (fusion).]
Farlex Partner Medical Dictionary © Farlex 2012
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