Editing Scapula (section)

=== Surfaces ===
[[File:Anatomy of Scapula.gif|thumb|3d model of scapula, along with annotations showing the various parts of the scapula]]

====Front or subscapular fossa====
The front of the scapula (also known as the costal or ventral surface) has a broad concavity called the '''subscapular fossa''', to which the [[subscapularis muscle]] attaches. The medial two-thirds of the fossa have 3 longitudinal oblique ridges, and another thick ridge adjoins the lateral border; they run outward and upward. The ridges give attachment to the tendinous insertions, and the surfaces between them to the fleshy fibers, of the subscapularis muscle. The lateral third of the fossa is smooth and covered by the fibers of this muscle.

At the upper part of the fossa is a transverse depression, where the bone appears to be bent on itself along a line at right angles to and passing through the center of the [[glenoid cavity]], forming a considerable angle, called the subscapular angle; this gives greater strength to the body of the bone by its arched form, while the summit of the arch serves to support the [[spine of scapula|spine]] and [[acromion]].

The costal surface superior of the scapula is the origin of 1st digitation for the serratus anterior origin.

{| class="wikitable" align="left"
|+ Figure 1 : Left scapula. Costal surface.
| [[File:Left scapula - close-up - animation - stop at anterior surface.gif|220px]]
|| [[File:Gray202.png|152px]]
|| [[File:Scapula ant numbered.png|175px]]
|| {{ordered list |[[Subscapular fossa]] |[[Glenoid cavity]] |[[Coracoid process]] |[[Acromion]] |[[Superior border of scapula|Superior border]] |[[Suprascapular notch|Scapular notch]] |[[Superior angle of scapula|Superior angle]] |[[Medial border of scapula|Medial border]] |[[Inferior angle of the scapula|Inferior angle]] |[[Lateral border of the scapula|Lateral border]] |[[Infraglenoid tubercle]]}}
|}
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====Back====
The back of the scapula (also called the dorsal or posterior surface) is arched from above downward, and is subdivided into two unequal parts by the spine of the scapula. The portion above the spine is called the [[supraspinous fossa]], and that below it the [[infraspinous fossa]]. The two fossae are connected by the [[spinoglenoid notch]], situated lateral to the root of the spine.
* The ''supraspinous fossa'', above the spine of scapula, is concave, smooth, and broader at its vertebral than at its humeral end; its medial two-thirds give origin to the [[Supraspinatus]]. At its lateral surface resides the spinoglenoid fossa which is situated by the medial margin of the [[glenoid fossa of scapula|glenoid]]. The spinoglenoid fossa houses the [[suprascapular canal]] which forms a connecting passage between the [[suprascapular notch]] and the [[spinoglenoid notch]] conveying the [[suprascapular nerve]] and vessels.<ref>{{cite journal |last1=Al-Redouan |first1=Azzat |last2=Holding |first2=Keiv |last3=Kachlik |first3=David |title="Suprascapular canal": Anatomical and topographical description and its clinical implication in entrapment syndrome |journal=Annals of Anatomy |date=2021 |volume=233 |page=151593 |doi=10.1016/j.aanat.2020.151593 |pmid=32898658 |doi-access= }}</ref>    
* The ''infraspinous fossa'' is much larger than the preceding; toward its vertebral margin a shallow concavity is seen at its upper part; its center presents a prominent convexity, while near the axillary border is a deep groove which runs from the upper toward the lower part. The medial two-thirds of the fossa give origin to the [[Infraspinatus]]; the lateral third is covered by this muscle.

There is a ridge on the outer part of the back of the scapula. This runs from the lower part of the glenoid cavity, downward and backward to the vertebral border, about 2.5&nbsp;cm above the inferior angle. Attached to the ridge is a fibrous septum, which separates the [[infraspinatus muscle]] from the [[Teres major]] and [[Teres minor]] muscles. The upper two-thirds of the surface between the ridge and the axillary border is narrow, and is crossed near its center by a groove for the scapular circumflex vessels; the [[Teres minor]] attaches here.

The broad and narrow portions above alluded to are separated by an oblique line, which runs from the axillary border, downward and backward, to meet the elevated ridge: to it is attached a fibrous septum which separates the [[Teres (disambiguation)|Teres]] muscles from each other.

Its lower third presents a broader, somewhat triangular surface, the '''inferior angle of the scapula''', which gives origin to the [[Teres major]], and over which the [[Latissimus dorsi]] glides; frequently the latter muscle takes origin by a few fibers from this part.
{| class="wikitable" align="left"
|+Figure 2 : Left scapula. Dorsal surface.
|-
| [[File:Left scapula - close-up - animation - stop at posterior surface.gif|220px]] || [[File:Gray203.png|153px]] || [[File:Scapula post numbered.png|172px]]
| {{ordered list |[[Supraspinous fossa]] |[[Spine of scapula|Spine]] |[[Infraspinous fossa]] |[[Superior border of scapula|Superior border]] |[[Superior angle of scapula|Superior angle]] |[[Medial border of scapula|Medial border]] |[[Inferior angle of the scapula|Inferior angle]] |[[Lateral border of the scapula|Lateral border]] |[[Lateral angle of the scapula|Lateral angle]] |[[Acromion]] |[[Coracoid process]] |Origin of [[teres major muscle]] |Origin of [[teres minor muscle]]}}
|}
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====Side====
The [[acromion]] forms the summit of the shoulder, and is a large, somewhat triangular or oblong process, flattened from behind forward, projecting at first laterally, and then curving forward and upward, so as to overhang the glenoid cavity.
{| class="wikitable" align="left"
|+Figure 3 : Left scapula. Lateral surface.
|-
| [[File:Left scapula - close-up - animation - stop at lateral surface.gif|260px]] || [[File:Gray205 left scapula lateral view.png|112px]] || [[File:LeftScapulaLateral.jpg|146px]]
| {{ordered list |[[Coracoid process]] |[[Glenoid cavity]] |[[Supraspinous fossa]] |[[Acromion]] |[[Infraspinous fossa]] |[[Inferior angle of the scapula|Inferior angle]] |[[Lateral border of the scapula|Lateral border]]}}
|}
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