Anatomy of Scapula Student’s Name University Course Professor Date Paper Outline • Parts/Divisions/Layers/Composition • Boundaries/ Relations • Attached Structures (Muscles, Ligaments etc.) • Histology/ Microscopic Anatomy • Developmental Variants • Injuries/Fractures • Clinical and Forensic Correlations Introduction • The scapula is also known as the shoulder blade. • It is a triangular, flat bone, which serves as a site for attachment for many muscles. • It articulates with the humerus at the glenohumeral joint, and with the clavicle at the acromioclavicular joint. Location of a Scapula • This bone is located posteriorly (on the back half of the body. • It serves as a joining force between the clavicle and the humerus. • he scapula plays an important role in stabilizing the other bones involved in the rhythm of shoulder motion. Surface of a Scapula • The costal (anterior) surface of the scapula faces the ribcage. • It contains a large concave depression over most of its surface, known as the subscapular fossa. • The subscapularis (rotator cuff muscle) originates from this fossa. Layers of Scapula • The scapula has three processes: the acromion, the spine, and the coracoid process. • Muscle attachments to these landmarks are covered in the "Muscles" section. • The ventral surface of the scapula abuts the thoracic rib cage and has a large concavity called the subscapular fossa where the subscapularis attaches. Attached Struc ...
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