Acromion Process Notes

The Acromion process is a part of the pectoral girdle. It is a small projection on the scapula bone. The clavicle articulates with the acromion process. It is also linked with the coracoid process.

Pectoral Girdle

The acromion process is one of the projections in the pectoral girdle. The pectoral girdle is a part of the appendicular skeleton and helps in articulation of the upper limb with the axial skeleton.

The Pectoral Girdle is composed of two equal halves, each made up of two bones: the Scapula and the Clavicle. The main components of the Pectoral Girdle are:

Scapula: It is a triangular bone located between the second and seventh ribs at the dorsal part of the thorax.

Clavicle: Also known as the collarbone, the clavicle is a long, slender bone with two curvatures.

Spine - It is the elevated ridge located on the back side of the scapula bone.

Acromion Process - It is the projection of the spine.

The glenoid cavity is where the head of the humerus articulates.

The Coracoid Process is a hook-like projection that is attached to the clavicle above the glenoid cavity.

Acromion Process Characteristics

The Acromion

The acromion is the small process of the scapula. Here are some important points to consider regarding the acromion:

The acromion is the flat, expanded projection of the spine.

It is a triangular process that forms the topmost, elevated portion of the shoulder.

The acromioclavicular joint is the point of articulation between the clavicle and the acromion process.

The Coracoid Process is connected to the Acromion by the Coracoacromial Ligament.

It protrudes beyond the glenoid cavity.

The acromion process can be convex, flat, curved, or hooked.

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