| anterolateral surface of shaft of humerus | The surface of the humerus lateral to the intertubercular groove. Synonym: facies anterior lateralis corporis humeri, facies anterolateralis corporis humeri. (05 Mar 2000) |
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| anteromedial surface of shaft of humerus | The surface of the humerus between the anterior and medial borders of the bone. Synonym: facies anterior medialis corporis humeri, facies anteromedialis corporis humeri. (05 Mar 2000) |
| antigens, surface | Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls and may be isolated. (12 Dec 1998) |
| articular surface | Any articular surface. Synonym: facies articularis. (05 Mar 2000) |
| articular surface of acromion | A small oval facet on the medial border of the acromion for articulation with the lateral end of the clavicle. Synonym: facies articularis acromii. (05 Mar 2000) |
| articular surface of arytenoid cartilage | The oval surface on the undersurface of the muscular process of the arytenoid for articulation with the cricoid cartilage. Synonym: facies articularis cartilaginis arytenoideae. (05 Mar 2000) |
| articular surface of head of fibula | The flat circular surface on the head of the fibula for articulation with the corresponding facet on the lateral condyle of the tibia. Synonym: facies articularis capitis fibulae. (05 Mar 2000) |
| articular surface of head of rib | An articular surface on the head of a rib that articulates with the body of a vertebra. Synonym: facies articularis capitis costae. (05 Mar 2000) |
| articular surface of patella | The posterior surface of the patella, covered with hyaline cartilage and subdivided by a vertical ridge into a larger lateral and a smaller medial surface for articulation with the corresponding condyles of the femur. Synonym: facies articularis patellae. (05 Mar 2000) |
| articular surface of temporal bone | The smooth portion of the mandibular articular fossa and eminence of the temporal bone that articulates with the disk of the temporomandibular joint. Synonym: facies articularis ossis temporalis. (05 Mar 2000) |
| articular surface of tubercle of rib | An oval facet on the inferomedial part of the tubercle of a rib for articulation with a facet on the transverse process of a vertebra. Synonym: facies articularis tuberculi costae. (05 Mar 2000) |
| arytenoidal articular surface of cricoid | One of two oval facets on the superiorelateral margin of the cricoid lamina for articulation with the arytenoid cartilages. Synonym: facies articularis arytenoidea cricoideae. (05 Mar 2000) |
| auricular surface of ilium | The irregular, L-shaped articular surface on the medial aspect of the ilium that articulates with the sacrum. Synonym: facies auricularis ossis ilii. (05 Mar 2000) |
| auricular surface of sacrum | The rough articular surface on the lateral aspect of the sacrum that articulates with the ilium on each side. Synonym: facies auricularis ossis sacri. (05 Mar 2000) |
| axial surface | The surface of a tooth parallel with its long axis; the axial surface's are the vestibular (labial or buccal), lingual, and contact (mesial or distal). (05 Mar 2000) |