Content
Introduction 0:00
Division of the Shoulder Muscles 0:28
Deltoid 1:07
Subscapularis 2:18
Supraspinatus 2:41
Infraspinatus 3:03
Teres Minor 3:16
Teres Major 3:32
Rotator Cuff Muscles 3:57


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Muscles of the shoulder joint
Deltoid
Subscapularis
Supraspinatus
Infraspinatus
Teres Minor
Teres Major

Deltoid
musculus deltoideus
Spinal Part
O: Spine of Scapula
spina scapulae
Acromial Part
○ O: Acromion of Scapula
Clavicular Part
○ O: Clavicle
I: Deltoid Tuberocity of Humerus
tuberositas deltoidei humeri
Function:
A: Abductio brachii
C: Rotatio Brachii Interna
S: Rotatio Brachii Externa
S+C = Adduction
A+C = Flexion
A+S = Extention

Subscapularis
musculus subscapularis
O: Subscapular Fossa
fossa subscapularis
I: Lesser tubercle + crest of humerus
tuberculum minus humeri et crista tuberculi minoris
F: Adduction, Internal Rotation

Supraspinatus
musculus supraspinatus
O: Supraspinous Fossa
fossa supraspinata
I: Greater tubercle of humerus
tuberculum majus humeri
F: Abduction

Infraspinatus
musculus infraspinatus
O: Infraspinous Fossa
fossa infraspinata
I: Greater tubercle of humerus
tuberculum majus humeri
F: External Rotation

Teres Minor
musculus teres minor
O: Lateral margin of Scapula
margo lateralis scapulae
I: Greater tubercle of humerus
tuberculum majus humeri
F: External Rotation, Extention

Teres Major
musculus teres minor
O: Inferior Angle of Scapula
angulus inferior scapulae
I: Crest of lesser tubercle of humerus
crista tuberculi mionoris humeri
F:
Adduction
Extension
Internal rotation

Rotator Cuff Muscles
Subscapularis
musculus subscapularis
Supraspinatus
musculus supraspinatus
Infraspinatus
musculus infraspinatus
Teres Minor
musculus teres minor
Stabilize the shoulder joint
○ Clinical Importance ⚠
§ Rotator Cuff Tear
§ Tendinitis
§ Bursitis