Quiz #2 Flashcards
Pectoralis major (upper/clavicular portion) origin
Medial half of clavicle
Pectoralis major (upper/clavicular portion) insertion
Intertubercular groove
Pectoralis major (upper/clavicular portion) action
Internal rotation (IR)
Flexion (upper)
Abduction (upper)
Pectoralis major (lower/sternal portion) origin
Sternum
Pectoralis major (lower/sternal portion) insertion
Intertubercular groove
Pectoralis major (lower/sternal portion) action
Internal rotation (IR)
Extension from flexed position (lower)
Adduction (lower)
Subscapularis origin
Subscapular fossa
Subscapularis insertion
Lesser tubercle
Subscapularis action
IR
Adduction
Extension
Coracobrachialis origin
Coracoid process
Coracobrachialis insertion
Medial humerus
Coracobrachialis action
Horizontal adduction
Flexion
Adduction
Anterior deltoid origin
Lateral 1/3 of clavicle
Anterior deltoid insertion
Deltoid tuberosity
Anterior deltoid action
Abduction
Flexion
Horizontal adduction
IR
Middle deltoid origin
Acromion process
Middle deltoid insertion
Deltoid tuberosity
Middle deltoid action
Abduction
Posterior deltoid origin
Spine of scapula
Posterior deltoid insertion
Deltoid tuberosity
Posterior deltoid action
Abduction
Extension
Horizontal abduction
ER
Supraspinatus origin
Supraspinous fossa
Supraspinatus insertion
Greater tubercle
Supraspinatus action
Abduction
Stabilization of humeral head in glenoid fossa
Latissimus dorsi origin
Thoracic vertebrae
Sacrum
Ilium
Latissimus dorsi insertion
Intertubercular groove
Latissimus dorsi action
Extension
Adduction
Internal rotation
Horizontal abduction
Teres major origin
Inferior angle of scapula
Teres major insertion
Intertubercular groove
Teres major action
Extension
Adduction
Internal rotation
Infraspinatus origin
Infraspinous fossa
Infraspinatus insertion
Greater tubercle
Infraspinatus action
External rotation
Extension
Horizontal abduction
Stabilization of humeral head in glenoid fossa
Teres minor origin
Lateral border of scapula
Teres minor insertion
Greater tubercle
Teres minor action
External rotation
Extension
Horizontal abduction
Stabilization of humeral head in glenoid fossa
Muscles that make up the rotator cuff:
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapularis