The triangular ridge on the dorsal aspect of the scapula which separates the supra- from the infraspinatous fossa and where the trapezius and deltoid muscles are attached. [ https://www.worldcat.org/search?q=bn%3A0-683-40008-8 MP:0004347 ]
Synonyms: spine of scapula
Term information
- EMAPA:25123
- SCTID:181916005
- FMA:13453
- Wikipedia:Spine_of_scapula
- MA:0002806
pheno_slim
http://upload.wikimedia.org/wikipedia/commons/a/a6/Gray205_left_scapula_lateral_view.png
homology debated
the cleithrum, the major shoulder bone of extinct land vertebrate ancestors,.. appears to survive as the scapular spine in living mammals[Matsuoka, PMC1352163]