Muscles of the Glenohumeral Joint Flashcards
1
Q
Pectoralis Major
A
Origin
- Clavicle
- Sternum
- Ribs
Insertion
- Intertubercular sulcus
- Greater tubercle of humerus
Actions
- Flexion
- Adduction (A)
- Horizontal Adduction (A)
- Medial Rotation
2
Q
Latissimus Dorsi
A
Origin
- Illiac crest
- Lumbar Vertebrae
- Throacic Vertebrae
Insertion
- Intertubercular Sulcus
Actions
- Extension (A)
- Adduction (A)
- Horizontal Adduction
- Medial Rotation
3
Q
Deltoid
A
Origin
- Clavicle
- Acromion
- Spine of Scapula
Insertion
- Deltoid Tuberosity
Actions
- Flexion (A)
- Extension (A)
- Horizontal Adduction
- Abduction (A)
- Horizontal Abduction (A)
- Medial Rotation
- Lateral Rotation
4
Q
Subscapularis
A
Origin
- Subscapular Fossa
Insertion
- Lesser Tubercule of Humerus
Actions
- Medial Rotation (A)
5
Q
Infraspinatus
A
Origin
- Infraspinous Fossa
Insertion
- Greater Tubercle of Humerus
Actions
- Horizontal Adduction
- Lateral Rotation (A)
6
Q
Supraspinatus
A
Origin
- Supraspinous Fossa
Insertion
- Greater Tubercle of Humerus
Actions
- Abduction (A)
7
Q
Teres Minor
A
Origin
- Inferior angle of Scapula
Insertion
- Greater Tubercle of Humerus
Actions
- Extension
- Adduction
- Horizontal Abduction
- Medial Rotation
8
Q
Coracobrachialis
A
Origin
- Coracoid Process
Insertion
- Shaft of Humerus
Actions
- Flexion
- Adduction
- Horizontal Adduction
9
Q
Biceps Brachii
A
Origin
- LH: Supraglenoid tubercle
- SH: coracoid process
Insertion
- Radial tuberosity
Actions
- Flexion
- Adduction
- Horizontal Adduction
- Horizontal Abduction
10
Q
Triceps Brachii
A
Origin
- LH: Infraglenoid tubercle
- Medial & lateral Humerus: shaft of humerus
Insertion
- Olecranon Process
Actions
- Extension
