Accessory process

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Bone: Accessory process

A lumbar vertebra from above and behind. (Accessory process labeled at center right.)
Latin	processus accessorius vertebrae lumbalis
Gray's	subject #23 106
Dorlands / Elsevier	p_34/12667271

Of the tubercles noticed in connection with the transverse processes of the lower thoracic vertebrae, the inferior is situated at the back part of the base of the transverse process, and is called the accessory process.

[edit] External links

accessory+process+of+lumbar+vertebra at eMedicine Dictionary

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e Bones of torso

Sternum	Suprasternal notch, Manubrium, Sternal angle, Body of sternum, Xiphisternal joint, Xiphoid process

Rib	specific ribs (1, 2, 9, 10, 11, 12, false - 8-12, floating - 11-12) - parts (Angle, Tubercle, Costal groove, Neck, Head)

General vertebral structures	body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular / zygapophysis, spinous)

Cervical vertebrae	C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C3, C4, C5, C6, C7 anterior tubercle, posterior tubercle, foramen transversarium

Thoracic vertebrae	T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 costal facets (superior, inferior, transverse)

Lumbar vertebrae	accessory process, mammillary process, L5

Sacrum	pelvic surface (anterior sacral foramina), dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface (sacral tuberosity), base, sacral hiatus - presacral space - sacral promontory - sacral canal - ala of sacrum - sacrovertebral angle