| RCM | radial contour model; radiographic contrast medium; red cell mass; reinforced clostridial medium; re... |
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| BDG | buccal developmental groove; buffered desoxycholate glucose |
| CDG | central developmental groove |
| DBDG | distobuccal developmental groove |
| DLG | distolingual groove |
| costal process | An apophysis extending laterally from the transverse process of a lumbar vertebra; it is the homologue of the rib. Synonym: processus costalis. (05 Mar 2000) |
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| costal respiration | Respiration effected chiefly by the action of the intercostal and other muscles that raise the ribs, causing expansion of the chest. Synonym: costal respiration. (05 Mar 2000) |
| costal surface | The surface of certain structures that face the ribs; they are the lungs and the scapula. Synonym: facies costalis. (05 Mar 2000) |
| costal surface of lung | The surface of each lung that lies in contact with the costal pleura. Synonym: facies costalis pulmonis. (05 Mar 2000) |
| costal surface of scapula | The concave aspect of the body of the scapula that faces the thorax and that principally lodges the subscapularis muscle. Synonym: facies costalis scapulae. (05 Mar 2000) |
| costal tuberosity | <anatomy> An irregular pitted area on the inferior surface of the clavicle at its sternal end, giving attachment to the costoclavicular ligament. Synonym: impressio ligamenti costoclavicularis, costal tuberosity, rhomboid impression, tuberositas costalis. (05 Mar 2000) |
| primitive costal arches | Arch's formed in the thoracic region of the vertebral column in the embryo from the costal processes or costal elements which give rise to the ribs. (05 Mar 2000) |
| superior costal facet | A demifacet on the upper edge of the body of a vertebra articulating with the head of a rib; a single rib articulates with the inferior costal facet and superior costal facet of the adjacent vertebrae. Synonym: fovea costalis superior, superior costal pit. (05 Mar 2000) |
| superior costal pit | A demifacet on the upper edge of the body of a vertebra articulating with the head of a rib; a single rib articulates with the inferior costal facet and superior costal facet of the adjacent vertebrae. Synonym: fovea costalis superior, superior costal pit. (05 Mar 2000) |
| inferior costal facet | Demifacet on the lower edge of the body of a vertebra articulating with the head of a rib. Synonym: fovea costalis inferior, inferior costal pit. (05 Mar 2000) |
| inferior costal pit | Demifacet on the lower edge of the body of a vertebra articulating with the head of a rib. Synonym: fovea costalis inferior, inferior costal pit. (05 Mar 2000) |
| intra-articular ligament of costal head | Transverse fibres extending within the capsule from the ridge between the two facets on the head of the rib to the intervertebral disk. Synonym: ligamentum capitis costae intra-articulare. (05 Mar 2000) |
| transverse costal facet | A facet on the transverse process of a vertebra for articulation with the tubercle of a rib. Synonym: fovea costalis processus transversi, costal pit of transverse process. (05 Mar 2000) |
| lateral costal branch of internal thoracic artery | <anatomy, artery> A variable branch of internal thoracic artery that runs lateral and parallel to the internal thoracic artery on the deep surface of the rib cage; anastomosis: posterior intercostal arteries. Synonym: ramus costalis lateralis arteriae thoracicae internae. (05 Mar 2000) |
| alveolobuccal groove | The upper and lower half of the buccal vestibule on each side. Synonym: alveolobuccal sulcus, gingivobuccal groove, gingivobuccal sulcus. (05 Mar 2000) |