Shoulder Complex Flashcards
What are the main joints of the shoulder complex
Sternoclavicular
Acromioclavicular
Glenohumeral joint
Scapulothoracic
What is the Function and structure of the Glenoid labrum
Helps stabilise the glenohumeral joint + centralise the humeral head. Made up of fibro-cartilaginous which encircles the glenoid cavity
What are the major ligaments
Anterior/posterior sterno clavicular ligament
Inter clavicular ligament
Muscles of rotator cuff
Subscap
Infraspinatus
Teres minor
Supraspinatus
Movement of shoulder joint
Flexion
Extension
Internal/external rotation
ABduction
Aduction
Muscles that flex the shoulder joint
Deltoid
Coracobrachialis
Pec major
Biceps brachii
Movements of the shoulder girdle
Depression
Elevation
Upward/downward rotation
Abduction
Addiction
Muscles that abduct the shoulder girdle
Supraspinatus
Deltoid
Trapezius
Serratus anterior
What type of joint is the glenohumeral joint
Synovial ball and socket joint
Origin and insertion of anterior sterno clavicular ligament
Clavicle to manubrium
Origin and insertion of posterior sterno clavicular ligament
Posterior end of clavicle to posterior manubrium
Origin and insertion of inter clavicular ligament
Emerges from deep cervical fascia and connects the sternal ends of both clavicles
What are the other structures of the shoulder
Joint capsule
Glenoid labrum
Subacrominal bursa
What is the joint capsule
Fibrous sheet which encloses the structure of the joint
What is the glenoid labrum
Soft fibrous tissue that surrounds the socket to help stabilise the joint
