Joints of the Pectoral Girdle

SC joint classification

Saddle joint, acts like ball/socket

SC joint articular surfaces

Fibrocartilage

SC joint articular surfaces

Fibrocartilage

SC joint ligaments

A/P sternoclavicular, interclavicular, costoclavicular ligaments

SC joint arterial supply

Supraclavicular, internal thoracic arteries

SC joint innervation

Supraclavicular and subclavian nerves

AC joint classification

Gliding

AC joint movement

Acromion rotates around acromial end of clavicle

AC joint articular surfaces

Fibrocartilage

AC joint ligaments

Acromioclavicular, coracoclavicular ligaments

2 parts of the coracoclavicular ligament

Trapezoid, conoid ligaments

AC joint arterial supply

Suprascapular, thoracoacromial arteries

AC joint innervation

Lateral pectoral, axillary nerves

Glenohumeral joint classification

Ball-and-socket

Glenohumeral joint articular surfaces

Hyaline cartilage

Glenohumeral joint ligaments

Glenohumeral (3), coracohumeral, transverse humeral, coracoacromial ligaments

Glenohumeral joint arterial supply

Suprascapular, A/P circumflex humeral arteries

Glenohumeral joint innervation

Suprascapular, lateral pectoral, axillary nerves