Acromioclavicular ligament

Ligament: Acromioclavicular ligament
The left shoulder and acromioclavicular joints, and the proper ligaments of the scapula.
Latin	ligamentum acromioclaviculare
Gray's	subject #82 315
From	acromion
To	clavicle
Dorlands/Elsevier	l_09/12491567

The Acromioclavicular ligament is part of the acromioclavicular joint. It is divided into two parts: superior and inferior.

Superior Acromioclavicular Ligament

This ligament is a quadrilateral band, covering the superior part of the articulation, and extending between the upper part of the lateral end of the clavicle and the adjoining part of the upper surface of the acromion.

It is composed of parallel fibers, which interlace with the aponeuroses of the Trapezius and Deltoideus; below, it is in contact with the articular disk when this is present.

Inferior Acromioclavicular Ligament

This ligament is somewhat thinner than the preceding; it covers the under part of the articulation, and is attached to the adjoining surfaces of the two bones.

It is in relation, above, in rare cases with the articular disk; below, with the tendon of the Supraspinatus.

External links

• SUNY Figs 10:02-01

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.