
1) Bone of the thorax
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https://www.crosswordclues.com/clue/sternal-angle

The sternal angle or angle of Louis, from the Latin angulus Ludovici is the anterior angle formed by the junction of the manubrium and the body of the sternum (the manubriosternal junction) in the form of a secondary cartilaginous joint (symphysis). This is also called the manubriosternal joint or Angle of Louis. The sternal angle is a palpable cl...
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http://en.wikipedia.org/wiki/Sternal_angle

The angle between the manubrium and the body of the sternum at the manubriosternal junction. Marks the level of the second costal cartilage (rib) for counting ribs or intercostal spaces. Denotes level of aortic arch, bifurcation of trachea, and T4/T5 intervertebral disc. ... Synonym: angulus sterni, Louis' angle, Ludwig's angle, manubriosternal jun...
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http://www.encyclo.co.uk/local/20973

an anatomical landmark located on the sternum; it can be felt as a notch or ridge at the top of the sternum. Called also Louis angle.
Found on
http://www.encyclo.co.uk/local/21001

Type: Term Definitions: 1. the angle between the manubrium and the body of the sternum at the manubriosternal junction. Marks the level of the second costal cartilage (rib) for counting ribs or intercostal spaces. Denotes level of aortic arch, bifurcation of trachea, and T4/T5 intervertebral disc. Synonyms: angulus sterni, Louis angle, Ludwig angle...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=4214
No exact match found.