where are the mammillary processes located on a typical lumbar vertebra
Lumbar vertebrae Three portions or tubercles can be noticed in a transverse process of a lower lumbar vertebrae: the lateral or costiform process, the mammillary process, and the accessory process.[2] The costiform is lateral, the mammillary is superior (cranial), and the accessory is inferior (caudal). The mammillary is connected in the lumbar region with the back part of the superior articular process.[clarification needed] The accessory process is situated at the back part of the base of the transverse process. The tallest and thickest costiform process is usually that of L5.[2]