横突 - Processus transversus

描述

The transverse processes, two in number, project one at either side from the point where the lamina joins the pedicle, between the cranial and caudal articular processes. They serve for the attachment of muscles and ligaments.

The transverse process of a lumbar vertebra is also called costal or costiform process, because it corresponds to a rudimentary rib (costa) which, as opposed to the thorax, is not developed in the lumbar region.


Text by Antoine Micheau, MD - Copyright IMAIOS

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