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Pectoral Girdle

8.1--Upper Limb

TermDefinition
Upper Limb 32 Bones; Pectoral girdle (2) and Free Upper Limb (30)
Pectoral Girdle Attach the bones of free upper limb to axial skeleton. Clavicle and Scapula. Doesn't articulate with vertebral column
Clavicle Collarbone; Horizontal, anterior to Thorax. Medial half is convex anteriorly. Lateral half is concave anteriorly (away).
Strut of Pectoral Girdl Props shoulder away from rib cage
Sternal End Medial End of clavicle. Rounded and articulates with manubrium of sternum to form sternoclavicular joint.
Acromial End Lateral End. Articulates with acromion of scapula at acromioclavicular joint
Conoid Tubercle interior surface of lateral end is point of attachment foor conoid ligament
Impression for Costoclavicular Ligament On inferior surface of sternal end; point of attachment for costoclavicular ligament
Scapula Shoulder blade; Triangular, flat. Superior part of posterior thorax.
Spine Runs diagonally across posterior
Acromion High Point, peak of shoulder; binds with acromial end of clavicle to form acromiovlavicular joint
Glenoid Cavity Shallow depression -- accepts head of humerus; forms glenohumeral joint
Medial (Vertebral Border) 5cm from Vertebral Column
Lateral (Axial Border) Closer to arm, thicker side
Inferior Angle medial and Lateral borders meet there
Superior Border
Superior Angle Meets with Medial Border
Scapular Notch Indentation along superior border
Corocoid Process Muscle attachment along anterior surface
Supraspinous Foss, Infraspinous Fossa, Subscapular Fossa Above SPine, below spine; Anterior Medial side
Created by: 100000434525601
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