| costae verae | Seven upper ribs on either side whose cartilages articulate directly with the sternum. Synonym: costae verae, vertebrosternal ribs. (05 Mar 2000) |
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| angulus costae | The rather abrupt change in curvature of the body of a rib posteriorly, such that the neck and head of the rib are directed upward. Synonym: angulus costae. (05 Mar 2000) |
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| articulatio capitis costae | The synovial joint between a rib and bodies of two adjacent vertebrae; the joint cavity is divided by an intra-articular ligament which attaches to the intervertebral disk; the first, tenth, eleventh, and twelfth ribs articulate with only one vertebra. Synonym: articulatio capitis costae, capitular joint. (05 Mar 2000) |
| caput costae | The rounded medial extremity of a rib which, except for ribs 1, 10, 11, and 12, articulates by two facets with the bodies of two contiguous vertebrae. Synonym: caput costae. (05 Mar 2000) |
| collum costae | The flattened portion of a rib between the head and the tuberosity. Synonym: collum costae. (05 Mar 2000) |
| musculus levator costae | musculus levator costae, elevator muscle of rib, musculi levatores costarum |
| corpus costae | The shaft of a rib; the portion which extends laterally, anteriorly, and then medially from the tubercle. Synonym: corpus costae. (05 Mar 2000) |
| costae fluctuantes | The two lower ribs on either side that are not attached anteriorly. Synonym: costae fluitantes, costae fluctuantes, vertebral ribs. (05 Mar 2000) |
| costae fluitantes | The two lower ribs on either side that are not attached anteriorly. Synonym: costae fluitantes, costae fluctuantes, vertebral ribs. (05 Mar 2000) |
| costae spuriae | <anatomy> Five lower ribs on either side that do not articulate with the sternum directly. Synonym: costae spuriae, vertebrochondral ribs. (05 Mar 2000) |
| crista capitis costae | The ridge that separates the superior and inferior articular surfaces of the head of a rib. Synonym: crista capitis costae. (05 Mar 2000) |
| crista colli costae | The sharp upper margin of the neck of a rib. Synonym: crista colli costae. (05 Mar 2000) |
| sulcus costae | A groove in the lower inner border of the rib, lodging the intercostal vessels and nerve. Synonym: sulcus costae, subcostal groove. (05 Mar 2000) |
| sulcus costae arteriae subclaviae | <anatomy, artery> A groove immediately posterior to the scalene tubercle on the upper surface of the first rib across which the subclavian artery passes. Synonym: sulcus costae arteriae subclaviae. (05 Mar 2000) |
| tuberculum costae | The knob on the posterior surface of a rib, at the junction of its neck and shaft, which articulates with the transverse process of the vertebra, whch corresponds in number to the rib, forming a costotransverse joint. Synonym: tuberculum costae. (05 Mar 2000) |
| facies articularis capitis costae | 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) |