Shoulder Region Flashcards
Name the Joints of the Shoulder Region
Acromioclavicular Joint
Sternoclavicular Joint
Glenohumeral Joint
What type of joint is the ACROMIOCLAVICULAR Joint?
Synovial Plane Joint
What type of joint is the STERNOCLAVICULAR joint?
Synovial Saddle Joint
What type of joint is the Glenohumeral Joint?
Synovial Multi-axial Ball and Socket Joint
What are the articular surfaces of the AC joint?
Small oval facets on the lateral clavicle and medial acromion
What ligament attaches the acromion and clavicle?
Acromioclavicular ligament
What is the joint capsule of the Sternoclavicular joint?
Anterior Sternoclavicular ligament
Posterior Sternoclavicular ligament
Inter-clavicular ligament
Costoclavicular ligament
What are the articular surfaces of the Glenohumeral Joint?
Humeral Head covered in hyaline cartilage & Glenoid Fossa covered in Glenoid labrum
What is the function of the Glenoid Labrum?
It is a fibro-cartilaginous rubbery structure which encircles the Glenoid cavity deepening the socket providing static stability to the GH joint.
What is the joint capsule of the Glenohumeral Joint?
Capsular Ligaments:
Superior GHL
Middle GHL
Inferior GHL
Transverse GHL
What are the Accessory Ligaments of the Glenohumeral Joint?
Coracohumeral ligament
Coracoacromial ligament
List the muscles of the rotator cuff
Supraspinatus
Infraspinatus
Teres Minor
Subscapularis
Name the PRIME MOVER and list the muscles involved in the movement: Shoulder Flexion
PRIME MOVER: Deltoid
Pectoralis Major
Coracobrachialis
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER EXTENSION
PRIME MOVER: Deltoid (posterior fibres)
Teres Major
Latissimus Dorsi
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER ABDUCTION
PRIME MOVER: Deltoid (middle fibres)
Supraspinatus (initiates the movement)
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER ADDUCTION
PRIME MOVER: Pectoralis Major
Latissimus Dorsi
Teres Major
Coracobrachialis
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER MEDIAL ROTATION
PRIME MOVER: Subscapularis
Pectoralis Major
Latissimus Dorsi
Deltoid (Anterior fibres)
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER LATERAL ROTATION
PRIME MOVER: Infraspinatus
Teres Major
Deltoid (posterior fibres)
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER PROTRACTION
PRIME MOVER: Seratus Anterior
Pectoralis Minor
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER RETRACTION
PRIME MOVER: Rhomboid Major
Rhomboid Minor
Middle Trapezius
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER ELEVATION
PRIME MOVER: Upper Fibres of Trapezius
Levator Scapulae
Name the PRIME MOVER and list the muscles involved in the movement: SHOULDER DEPRESSION
PRIME MOVER: Seratus Anterior
Pectoralis Minor
Explain the Normal Scapulo-humeral Rhythm
The combined movement that occurs at the Glenohumeral joint and Scapulo-humeral joint in a ratio of 2:1
What is the ROM during SHOULDER FLEXION?
110 - 170 degrees
What is the ROM during SHOULDER EXTENSION?
50 - 70 degrees
What is the ROM during SHOULDER ABDUCTION?
100-120 degrees
What is the ROM during SHOULDER ADDUCTION?
30 - 45 degrees
What is the ROM during SHOULDER MEDIAL ROTATION?
90 degrees
What is the ROM during SHOULDER LATERAL ROTATION?
80 degrees
