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Angle (rib)
From Wikipedia, the free encyclopedia
| Angle (rib) | |
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| A central rib of the left side. Inferior aspect. (Angle labeled at center top.) | |
| Latin | angulus costae |
| Gray's | subject #28 124 |
| Dorlands/Elsevier | a_42/12136233 |
The external surface of the rib is convex, smooth, and marked, a little in front of the tubercle, by a prominent line, directed downward and laterally; this gives attachment to a tendon of the Iliocostalis, and is called the angle.
At this point the rib is bent in two directions, and at the same time twisted on its long axis.
If the rib be laid upon its lower border, the portion of the body in front of the angle rests upon this border, while the portion behind the angle is bent medially and at the same time tilted upward; as the result of the twisting, the external surface, behind the angle, looks downward, and in front of the angle, slightly upward.
The distance between the angle and the tubercle is progressively greater from the second to the tenth ribs. The portion between the angle and the tubercle is rounded, rough, and irregular, and serves for the attachment of the Longissimus dorsi.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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This musculoskeletal system article is a stub. You can help Wikipedia by expanding it. |
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| Sternum | Suprasternal notch, Manubrium, Sternal angle, Body of sternum, Xiphisternal joint, Xiphoid process |
| Rib | specific ribs (1, 2, 10, 11, 12, false - 8-12, floating - 11-12) - parts (Angle, Tubercle, Costal groove, Neck, Head) |
| General vertebral structures | body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular / zygapophysis, spinous) |
| Cervical vertebrae | C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C7, anterior tubercle, posterior tubercle, foramen transversarium |
| Thoracic vertebrae | costal facets (superior, inferior, transverse) |
| Lumbar vertebrae | accessory process, mammillary process |
| Sacrum/coccyx | pelvic surface (anterior sacral foramina), dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface (sacral tuberosity), base, sacral hiatus - presacral space - sacral promontory - sacral canal - ala of sacrum |