Muscular Pt.2 Rotator Cuff Muscles Flashcards
1
Q
The 4 muscles of the rotator cuff orginate from?
A
Originate: Scapula/shoulderblade
Insert: On humerus
To form the pelvic sleeve
2
Q
The action of the Rotator Cuff?
A
Anchor/ holds head of humerus in glenoid fascia of scapula to reinforce the joint
3
Q
Supraspinatus:
A
Location: Posterior scapula ABOVE scapular-spine
Action: Adducts humerus laterally
4
Q
Infraspinatus:
A
Location: Posterior scapula BELOW scauplar spinne
Action: rotates humerus laterally
5
Q
Teres Minor:
A
Location: posterior scapula, deep to infrspinatus
Action: helps rotate humerus laterally
6
Q
Subscapularis:
A
Location: subscapular fascia on anterior scapula
Action: rotates humerus medially
