shoulder & arm actions

Question 1

shoulder flexion (4)

Answer 1

deltoid (anterior fibers)
pectoralis major (upper fibers)
biceps brachii
coracobrachalis

Question 2

shoulder extension (5)

Answer 2

deltoid (posterior fibers)
latissimus dorsi
teres major
pectorals major (lower fibers)
triceps brachii (long head)

Question 3

shoulder horizontal abduction (1)

Answer 3

deltoid (posterior fibers)

Question 4

shoulder horizontal adduction (2)

Answer 4

deltoid (anterior fibers)
pectoralis major (uppers fibers)

Question 5

shoulder abduction (2)

Answer 5

deltoid (all fiber)

supraspinatus

Question 6

shoulder adduction (7)

Answer 6

latissimus dorsi
teres major
infraspinatus
teres minor
pectoralis major (all fibers)
triceps brachii (long head)
coracobrachialis

Question 7

shoulder lateral rotation (external rotation) (3)

Answer 7

deltoid (posterior fibers)
infraspinatus
teres minor

Question 8

shoulder medial rotation (internal rotation) (5)

Answer 8

deltoid (anterior fibers)
latissimus dorsi
teres major
subscapularis
pectoralis major (all fibers)

Question 9

scapula elevation (4)

Answer 9

trapezius (upper fibers, unilaterally)
rhomboid major
rhomboid minor
levator scapula (unilaterally)

Question 10

scapula depression (3)

Answer 10

trapezius (lower fibers)
serrates anterior (with the origin fixed)
pectoralis minor

Question 11

scapula adduction (retraction) (3)

Answer 11

trapezius (middle fibers)
rhomboid major
rhomboid minor

Question 12

scapula abduction (protraction) (2)

Answer 12

serrates anterior (with origin fixed)
pectoralis minor

Question 13

upward rotation of the scapula (2)

Answer 13

trapezius (upper and lower fibers)
serratus anterior (with origin fixed)

Question 14

downward rotation of the scapula (4)

Answer 14

rhomboid major
rhomboid minor
levator scapula
pectoralis minor