lat·er·al mass of at·las

[TA]

the thick weight-bearing lateral part of the atlas on each side that articulates above with the occipital condyle and below with the axis.

Synonym(s): massa lateralis atlantis [TA]

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References in periodicals archive

Skull one is showing fusion of lateral mass of atlas on both sides.

Study of variations of occipital condyles

Lateral mass of atlas bearing superior articular surface with transverse foramen on either side were normal.

Study of atlanto-axial fusion--[C1 and C2 vertebral synostosis] among 200 atlas vertebrae

After passing through the transverse foramen it runs on the medial side and curves backwards behind the lateral mass of atlas, the ventral ramus of the first cervical nerve being on its medial side; It then lies in the groove on the upper surface of the posterior arch of atlas and enters the Vertebral canal by passing below the lower, arched border of the posterior atlanto occipital membrane.

Anatomical variations in conduit of vertebral artery in atlas

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