<prompt> Centrum of veebra is formed fromPre axial mesodermNotochordParaxial mesodermSomatic mesoderm  <response>: In the veebrate spinal column, each veebra is an irregular bone with... The upper and lower surfaces of the centrum are flattened and rough in order to give attachment to the interveebral discs.BD CHAURASIA S HUMAN ANATOMY Vol1 