Lateral mass of atlas
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| Bone: Lateral mass of atlas | ||
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| First cervical vertebra, or atlas. (Lateral mass labeled at center right.) | ||
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| Articulation between odontoid process and atlas. (Lateral mass visible at left and right.) | ||
| Latin | massa lateralis atlantis | |
| Gray's | subject #21 99 | |
| Dorlands/Elsevier | m_04/12515858 | |
The lateral masses are the most bulky and solid parts of the atlas, in order to support the weight of the head.
Each carries two articular facets, a superior and an inferior.
It is the origin of the obliquus capitis superior and the insertion of the obliquus capitis inferior.
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 As such, some of the information contained herein may be outdated.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.
| Bones of torso |
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| sternum: manubrium, body of sternum, xiphoid process, suprasternal notch
rib: first rib, tenth rib, eleventh rib, twelfth rib, floating rib, false ribs, angle, tubercle, costal groove, neck, head general vertebral structures: body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular, spinous) cervical vertebrae: C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C7, anterior tubercle, posterior tubercle, foramen transversarium thoracic vertebrae: costal facets (superior, inferior, transverse) lumbar vertebrae: accessory process, mammillary process sacrum/coccyx: pelvic surface (anterior sacral foramina, dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface, base, sacral hiatus |
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