Shoulder Muscles

Question 1

which muscles attatch the trunk to the scapula? are they intrinsic or extrinsic?

Answer 1

trapezius, rhomboids, serratus anterior

extrinsic

Question 2

is the trapezius superior or inferior to the rhomboids?

Answer 2

superior

Question 3

which muscles elevate the scapula?

Answer 3

trapezius and rhomboids

Question 4

which muscles depress the scapula?

Answer 4

pec minor, lower part of trapezius

Question 5

where does serratus anterior attach?

Answer 5

ribs and inside of scapula

Question 6

what movements do the scapula perform?

Answer 6

elevation and depression
protraction and retraction
upwards and downwards rotation
tilting

Question 7

which muscles retract the scapula?

Answer 7

rhomboids and trapezius

Question 8

which muscles attatch the trunk to the humerus?

Answer 8

latissimus dorsi

pectoralis major

Question 9

what movements do lat dorsi and pec major aid?

Answer 9

shoulder ad and ab
shoulder extension
internal rotation

Question 10

which muscles attach the scapula to the humerus? are they intrinsic or extrinsic?

Answer 10

deltoid and rotator cuff muscles

intrinsic

Question 11

what sections of the deltoid is oresent?

Answer 11

anterior, posterior, lateral

Question 12

what role does the posterior deltoid play in shoulder movement?

Answer 12

extension

Question 13

what are the deltoids commonly thought as?

Answer 13

abducting muscles for humerus

Question 14

what is the role of the rotator cuff muscles?

Answer 14

align glenohumeral joint and keep humerus secure

Question 15

what movements do the upper rotator cuff muscles achieve?

Answer 15

abduction

Question 16

what movements do the lower rotator cuff muscles achieve?

Answer 16

external rotation

Question 17

which muscles generate internal rotation of the arm?

Answer 17

rotator cuff, pec major and lat dorsi

Question 18

what muscles are involved in shoulder abduction?

Answer 18

upper trapezius, deltoid, upper rotator cuff