Shoulder Girdle Jeopardy

Anatomical Landmarks

100

Slightly concave surface that articulates with the humerus

Glenoid fossa 

200

On the clavicle, this end articulates with the sternum

Medial/sternal end 

300

Hook-shaped projection on anterior-superior surface 

Coracoid process

400

Lateral, broad, flat end of the spine of the scapula

Acromion process 

500

Where the vertebral border and the axillary border of the scapula meet

Inferior angle

Sternoclavicular Joint

100

Articulation of what two surfaces  

Manubrium of the sternum and the medial/sternal end of the clavicle 

200

Degrees of freedom 

3

300

Osteokinematic movements of the sternoclavicular joint

Elevation/depression 

Protraction/retraction 

Rotation 

400

This structure serves as a shock absorber

Articular disc

500

The clavicle portion of the joint is generally _______ vertically, and ______ anterior/posterior. 

Convex/concave 

Acromioclavicular Joint

100

Articulation of what two surfaces 

Acromion process of the scapula and the lateral (acromial end) of the clavicle

200

Primary function of 

Allows continuity between the scapula and thorax; allow the scapula to maintain contact with the thorax throughout the movement by providing slight adjustments

300

Area between the “arch” and the humeral head

Subacromial space

400

Forms “roof” over the head of humerus

Coracoacriomal ligament

Scapulothoracic Joint

100

Osteokinematic movements of the scapula 

Elevation/depression 

Protraction/retraction 

Upward/downward rotation 

200

Ratio of scapulohumeral rhythym

2:1 

300

Superior border of the scapula tilts forward

Anterior tilt

400

"Setting" phase of scapulohumeral rhythm 

First 30 degrees of GH joint movement 

500

Degrees of ST vs GH joint in scapulohumeral rhythm 

60° of upward rotation of the scapula, 120° of GH joint abduction = 180° of shoulder abduction