Bones of the upper limb
The left clavicle from the front and above
a) Body or diaphysis.
b) Sternal or medial end (thick* triangular and lies in the clavicular notches of the manubrium sterni; origin of mm pectoralis major and sternocleidomastoideus).
c) Acromial or scapular end (flat and broad* united with the acromion scapulae; Insertion of mm triangularis and deltoideus.
d) Superficial articular end to be joined to the acromion