Actions (Superficial Back, Shoulder)

Question 1

direct attachment of pectoral girdle to trunk

Answer 1

trapezius

Question 2

superior fibers elevate scapula (squaring shoulders)

Answer 2

trapezius

Question 3

middle fibers retract scapula

Answer 3

trapezius

Question 4

inferior fibers depress scapula and lower the shoulder

Answer 4

trapezius

Question 5

extends, adducts, and medially rotates the humerus

Answer 5

latissimus dorsi

Question 6

raises body towards arm during climbing

Answer 6

latissimus dorsi

Question 7

movements used when chopping wood, paddling a canoe, swimming

Answer 7

latissimus dorsi

Question 8

elevates and rotates the scapula

Answer 8

levator scapulae

Question 9

depresses glenoid cavity

Answer 9

levator scapulae

Question 10

assists in retracting the scapula and fixing it against the trunk

Answer 10

levator scapulae

Question 11

assists in flexing the neck laterally

Answer 11

levator scapulae

Question 12

lie deep to the trapezius

Answer 12

rhomboids

major: thin and flat
minor: thicker and lies superior to major

Question 13

retract and rotate the scapula

Answer 13

rhomboids (major and minor)

Question 14

depress the glenoid cavity of scapula

Answer 14

rhomboids (major and minor)

Question 15

assist serratus anterior in holding scapula against the thoracic wall

Answer 15

rhomboids (major and minor)

Question 16

abduction of the arm (after initial 15 degrees)

Answer 16

deltoid

Question 17

assisted by the supraspinatus to initiate movement during the 1st 15 degrees of abduction

Answer 17

deltoid

Question 18

resists inferior displacement of the head of the humerous from the glenoid cavity

Answer 18

deltoid

Question 19

anterior/posterior parts used to swing the limbs during walking

Answer 19

deltoid

Question 20

anterior part assists the pectoralis major in flexing the arm

Answer 20

deltoid

Question 21

posterior part assists the latissimus dorsi in extending the arm

Answer 21

deltoid

Question 22

helps stabilize the shoulder point

Answer 22

deltoid

Question 23

helps to hold the humerus in the glenoid cavity during the arm movements

Answer 23

deltoid

Question 24

form a muscotendinous rotator cuff around the glenohumeral joint

Answer 24

rotator cuff muscles (S.I.T.S)

S: supraspinatus
I: infraspinatus
T: teres minor and major
S: subscapularis

Question 25

are rotators of the humerous (except the supraspinatous)

Answer 25

rotator cuff muscles (S.I.T.S)

S: supraspinatus
I: infraspinatus
T: teres minor and major
S: subscapularis

Question 26

inferior border forms the inferior border of the lateral part of the posterior wall of the axilla

Answer 26

teres major

Question 27

adducts and medially rotates the arm

Answer 27

teres major

Question 28

helps to extend arm from the flexed position

Answer 28

teres major

Question 29

stabilizer of the humeral head in the glenoid cavity

Answer 29

teres major