Shoulder Joint Anatomy Concise Medical Knowledge The posterior surface (dorsal surface) of scapula is the convex area on the posterior aspect of the bone. it is one of two surfaces of the scapula, the other being the costal surface. the dorsal surface of scapula consists of the spine of the scapula, which separates its supraspinous and infraspinous fossae. it provides origin sites for the. The scapula has two surfaces; on the anterior aspect is the smooth costal surface, which is concave in shape and is majorly taken up by the subscapular fossa. at the back of the scapula is the convex and uneven posterior surface which has a protruding ridge of bone ( spine of the scapula) that unevenly separates it into two divisions: the superior supraspinous fossa and the much bigger.
The Scapula Surfaces Fractures Winging Teachmeanatomy 1. costal surface. it is the anterior surface of the scapula facing the thoracic cage or ribcage. it has a large concave depression over most of the surface, called the subscapular fossa, from where the rotator cuff muscle subscapularis originates. this region is marked by longitudinal ridges, out of which a thick ridge joins the lateral border. The posterior surface (dorsal surface) is arched from above downward, and is subdivided into two unequal parts by the spine; the portion above the spine is called the supraspinatous fossa, and that below it the infraspinatous fossa.the supraspinatous fossa, the smaller of the two, is concave, smooth, and broader at its vertebral than at its humeral end; its medial two thirds give origin to the. Osteology. the main part of the scapula, the body, consists of a somewhat triangular shaped flat blade, with an inferiorly pointing apex, referred to as the inferior angle as well as lateral and superior angles. the scapula is described as having superior, medial, and lateral borders. dorsal view of the scapula. The scapula’s flat, triangular shape is why people call it the shoulder blade. even though it’s one bone, the scapula has three surfaces: costal (anterior) surface. lateral surface. posterior (inferior) surface. costal (anterior) surface. the scapula’s costal surface is the front — the side that faces your ribcage.
Imagequiz Posterior Right Scapula Osteology. the main part of the scapula, the body, consists of a somewhat triangular shaped flat blade, with an inferiorly pointing apex, referred to as the inferior angle as well as lateral and superior angles. the scapula is described as having superior, medial, and lateral borders. dorsal view of the scapula. The scapula’s flat, triangular shape is why people call it the shoulder blade. even though it’s one bone, the scapula has three surfaces: costal (anterior) surface. lateral surface. posterior (inferior) surface. costal (anterior) surface. the scapula’s costal surface is the front — the side that faces your ribcage. Also, some ridges and lines formed by the muscle attachments can be seen on the anterior surface. anterior view of scapula by anatomy.app . posterior surface . the posterior or dorsal surface arches downward from the superior border of the scapula. it is divided into two unequal parts by a bony ridge that transverses the posterior surface from. Costal surface. (shoulder blade) the scapula forms the posterior part of the shoulder girdle. it is a flat, triangular bone, with two surfaces, three borders, and three angles. surfaces. —the costal or ventral surface (fig. 202) presents a broad concavity, the subscapular fossa. the medial two thirds of the fossa are marked by several oblique.
Scapula Shoulder Blade Anatomy вђ Earth S Lab Also, some ridges and lines formed by the muscle attachments can be seen on the anterior surface. anterior view of scapula by anatomy.app . posterior surface . the posterior or dorsal surface arches downward from the superior border of the scapula. it is divided into two unequal parts by a bony ridge that transverses the posterior surface from. Costal surface. (shoulder blade) the scapula forms the posterior part of the shoulder girdle. it is a flat, triangular bone, with two surfaces, three borders, and three angles. surfaces. —the costal or ventral surface (fig. 202) presents a broad concavity, the subscapular fossa. the medial two thirds of the fossa are marked by several oblique.
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