| arcus posterior atlantis | The posterior arch of the atlas that connects the lateral masses of the atlas posteriorly, forming the posterior wall of the vertebral canal at this level. Synonym: arcus posterior atlantis. (05 Mar 2000) |
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| massa lateralis atlantis | The thick lateral part of the atlas on each side that articulates above with the occipital condyle and below with the axis. Synonym: massa lateralis atlantis. (05 Mar 2000) |
| tuberculum anterius atlantis | A conical protuberance on the anterior surface of the arch of the atlas. Synonym: tuberculum anterius atlantis. (05 Mar 2000) |
| tuberculum posterius atlantis | A protuberance of the posterior extremity of the arch of the atlas, a rudiment of the spinous process giving attachment to the musculus rectus capitis posterior minor muscle. Synonym: tuberculum posterius atlantis. (05 Mar 2000) |
| facies articularis inferior atlantis | One of two concave surfaces on the lateral masses of the atlas that articulate with corresponding surfaces on the axis. Synonym: facies articularis inferior atlantis, fovea articularis inferior atlantis, inferior articular pit of atlas. (05 Mar 2000) |
| facies articularis superior atlantis | One of two concave articular surfaces on the superior aspect of the lateral masses of the atlas that articulate with the occipital condyles. Synonym: facies articularis superior atlantis, fovea articularis superior atlantis, superior articular pit of atlas. (05 Mar 2000) |
| fasciculi longitudinales ligamenti cruciformis atlantis | <anatomy> Ligamentous slips forming the "upright" or vertical beam of the cruciform ligament. Synonym: fasciculi longitudinales ligamenti cruciformis atlantis. (05 Mar 2000) |
| fovea articularis inferior atlantis | One of two concave surfaces on the lateral masses of the atlas that articulate with corresponding surfaces on the axis. Synonym: facies articularis inferior atlantis, fovea articularis inferior atlantis, inferior articular pit of atlas. (05 Mar 2000) |
| fovea articularis superior atlantis | One of two concave articular surfaces on the superior aspect of the lateral masses of the atlas that articulate with the occipital condyles. Synonym: facies articularis superior atlantis, fovea articularis superior atlantis, superior articular pit of atlas. (05 Mar 2000) |
| fovea dentis atlantis | A circular facet on the posterior (inner) surface of the anterior arch of the atlas which articulates with the dens of the axis. Synonym: fovea dentis atlantis, pit of atlas for dens. (05 Mar 2000) |
| caput transversum | Head of origin of a muscle which is transversely situated. Nomina Anatomica lists transverse heads (caput transversum...) of the following: 1) adductor hallucis muscle (... Musculi adductoris hallucis ); 2) adductor pollicis muscle (... Musculi adductoris pollicis ). Synonym: caput transversum. (05 Mar 2000) |
| caput transversum musculi adductoris hallucis | Transverse head of adductor hallucis muscle. See: transverse head. (05 Mar 2000) |
| caput transversum musculi adductoris pollicis | Transverse head of adductor pollicis muscle. See: transverse head. (05 Mar 2000) |
| velum transversum | A fold in the dorsal wall of the embryonic brain at the boundary between the telencephalon and diencephalon. Synonym: velum transversum. (05 Mar 2000) |
| colon transversum | <anatomy> The third division of the colon (large intestine). It communicates with the ascending colon in the upper right-hand quadrant of the abdomen and the descending colon in the upper left-hand quadrant. (19 Jan 1998) |