Anatomy 101 Shoulder/Back Muscles Functions Flashcards
1
Q
trapezius action
A
elevates scapula
rotates scapula up
extends head
2
Q
deltoid action
A
abducts arm
secondarily flexes and extends arm
3
Q
latissimus dorsi action
A
adducts
extends arm
rotates arm medially
4
Q
supraspinatus action
A
assists abduction of arm
holds humerus
stabilizes shoulder joint
5
Q
infraspinatus action
A
laterally rotates humerus
stabilizes shoulder joint
6
Q
subscapularis action
A
adducts
rotates arm medially
stabilizes shoulder joint
7
Q
teres minor action
A
laterally rotates humerus
stabilizes shoulder joint
8
Q
teres major action
A
adducts
extends
rotates arm laterally
9
Q
levator scapulae action
A
elevates scapula
10
Q
rhomboid minor action
A
retracts scapula
11
Q
rhomboid major action
A
retracts scapula
12
Q
splenius capitis action
A
extends head
rotates head to same side as contracting muscle
