Trapezoid ligament

The trapezoid ligament, the anterior and lateral fasciculus, is broad, thin, and quadrilateral: it is placed obliquely between the coracoid process and the clavicle.

The trapezoid ligament, the anterior and lateral fasciculus, is broad, thin, and quadrilateral: it is placed obliquely between the coracoid process and the clavicle.

It is attached, below, to the upper surface of the coracoid process; above, to the oblique ridge on the under surface of the clavicle

Clavicle

In human anatomy, the clavicle or collar bone is classified as a long bone that makes up part of the shoulder girdle . It receives its name from the Latin clavicula because the bone rotates along its axis like a key when the shoulder is abducted. This movement is palpable...

.

Its anterior border is free; its posterior border is joined with the conoid ligament

Conoid ligament

The Conoid Ligament, the posterior and medial fasciculus, is a dense band of fibers, conical in form, with its base directed upward.It is attached by its apex to a rough impression at the base of the coracoid process, medial to the trapezoid ligament; above, by its expanded base, to the coracoid...

, the two forming, by their junction, an angle projecting backward.