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The Scapula

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Submitted By heather4338
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Things to mention for scapula:
The scapula is part of the pectoral girdle; along with the clavicle it helps to support the upper limb. So it is part of the appendicular skeleton
It resides along the superior and posterior thoracic cage and articulates with the humerus/the bone of the arm.
It is also the site of attachment for numerous muscles.
There are two so plural would be scapulae.
Triangle shaped that sit on the posterosuperior rib cage, extending from approximately ribs 2 to 7.
It is a flat bone, so we have our bone sandwich of compact outer bone and spongy bone on the inside as our filling to our sandwich. This bone is formed through the process of intramembranous ossification, via connective tissue.
Its largest portion the body has 3 borders the medial, lateral, and superior borders.
The apices of the scapular triangle are called angles the superior, inferior and lateral angles.
On the posterior side or the dorsal side of the scapula there is a ridge of bone and this is called the scapular spine. It crosses from medial to lateral along its superior border.
The area superior to the spine is the supraspinous fossa, the area inferior is the infraspinous fossa.
The spine terminates at this bony knob here called the acromion process which articulates with the clavicle to form the acromioclavicular (AC) joint. A common injury to this joint is a separated shoulder.
Across from that is another bony knob, on the anterior surface of the scapula is a hook shaped projection called the coracoid process (corac=crow).
The other side, the smooth side is called the ventral surface
Inferior to the coracoid process is a broad indentation, called the subscapular fossa, the subscapularis muscle attaches to this.
In-between the two is the glenoid fossa, which is this shallow flat indentation right here. (Glen=pit/cavity) this along with the humerus form the

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