arm muscles

Question 1

what causes abduction
(protraction of the scapula)

Answer 1

-subclavius
-pectoralis minor
-serratus anterior

Question 2

what muscles causes depression of the scapula?

Answer 2

-subclavius
-pectoralis minor
- lower fibers of trapezius

Question 3

what causes adduction (retraction) of scapula?

Answer 3

-rhomboid major and minor
-middle fibers of trapezius

Question 4

what causes elevation of scapula?

Answer 4

• upper fibers of trapezius
  -levator scapulae

Question 5

what are your rotator cuff muscles and the movements of the muscles?

Answer 5

“SITS”
- supraspinatus-> abduction
-Infraspinatus-> lateral rotation
-Teres Minor-> lateral rotation
-Subscapularis-> medial rotation

Question 6

muscles that causes flexion of arm at shoulder

Answer 6

-deltoids-> anterior fibers
-pectoralis major
-coracobrachialis
-biceps brachii

Question 7

muscles that causes extension of arm at shoulder

Answer 7

-deltoids-> posterior fibres
-triceps brachii (adduction as well)
-latissimus dorsi
-teres major

Question 8

flexion of forearm at elbow

Answer 8

-biceps
-brachialis
-brachioradialis
-pronator teres

Question 9

extension of forearm at elbow

Answer 9

-triceps
-anconeus

Question 10

muscles that causes pronation

Answer 10

pronator teres and pronator quadratus

Question 11

muscles that causes supination

Answer 11

biceps brachii and supinator