Appendicular Skeleton- Pectoral (shoulder) Girdle Bones and Markings

clavicle b of the Pectoral Girdle Bones

S shaped bones that originate at the superior lateral border of the manubrium of the sternum, lateral to the jugular notch

Sternal (medial) end of the Clavicle B

pyramid shaped end of the clavicle that curves laterally and posteriorly for about half its length, then forms a smooth posterior curve to articulate with a process of the scapula, the acromion

Acromial (lateral) end of the Clavicle B

flat, broader end of the clavicle bone with a rougher, anterior surface that has prominent lines and tubercles.

Body(shaft) of Clavicle B

elongated area of the clavicle B that lies between the sternal end and the acromial end

Conoid Tubercle of Clavicle B

on the inferior surface of the clavicle B, attachment sites for muscles and ligaments of the shoulder

Costal Tuberosity of the Clavicle B

on the inferior surface of the clavicle B, attachment sites for muscles and ligaments of the shoulder

Scapula B (2)

flat bones found on the posterior side of the rib cage, Each triangular shaped scapula is made up of two large processes for muscular attachment and the glenoid cavity for articulation with an arm bone

Spine of Scapula B

a ridge that crosses the posterior surface before ending at the medial border

Supraspinous (supraspinatus) fossa of Scapula B

the area superior to the spine

Infraspinous (infraspinataus) fossa of Scapula B

the area below, or inferior, to the spine

Subscapular fossa of Scapula B

the depression in the anterior surface

Glenoid cavity (fossa) of the scapula B

the lateral angle that forms a broad process that supports this cup-shaped in the scapula, articulates with the humerus, also known as the glenohumeral joint

coracoid process of scapula B

small anterior projection next to the acromin

Acromion Process of the Scapula B

the larger, posterior process along the superior surface of the shoulder joint, articulates with the clavicle at the acromioclavicular joint

superior border of the scapula B

superior side of the scapula where muscles position themselves

Medial (vertebral) border of the Scapula B

middle-most side of the scapula where muscles position themselves

Lateral (axillary) border of the Scapula B

border located on the outside of the scapula

Superior Angle of Scapula B

angle of the scapula that forms between the superior border and the medial border

Inferior angle

bottom point of scapula, lies between the lateral and the medial border