Biomechanics of the Shoulder Joint

These flashcards are designed to help students review key anatomical terms and concepts related to the biomechanics of the shoulder joint.

Acromioclavicular joint

The joint between the acromion of the scapula and the clavicle.

Sternoclavicular joint

The joint connecting the sternum and the clavicle.

Glenohumeral joint

The ball-and-socket joint between the glenoid cavity of the scapula and the head of the humerus.

Scapulothoracic joint

The anatomical joint formed by the scapula and the thoracic rib cage.

Protraction

Movement of the scapula away from the spine.

Retraction

Movement of the scapula towards the spine.

Elevation

Movement of the scapula upwards.

Depression

Movement of the scapula downwards.

Horizontal abduction

Movement in which the arm moves away from the midline in a horizontal plane.

Horizontal adduction

Movement in which the arm moves towards the midline in a horizontal plane.

Osteokinematics

The study of gross movements of bones at joint surfaces.

Artrocinematics

The study of the movements occurring within the joint.

Circumduction

Circular movement at a joint involving flexion, extension, abduction, and adduction.

Articulación Esternoclavicular

Sternoclavicular joint in Spanish.

Articulación Acromioclavicular

Acromioclavicular joint in Spanish.

Articulación Escapulotorácica

Scapulothoracic joint in Spanish.

Retroversion

The backward rotation of a body; specific angles of rotation for joints.

Inferior angle

The lowest point of the scapula.

Medial border

The side of the scapula nearest to the spine.

Lateral angle

The outer edge where the scapula meets the humerus.