thorax/ shoulder/ upper limb

Question 1

2 parts of the pectoralis major m.?

Answer 1

clavicular & sternocostal

Question 2

actions of both parts of the pectoralis major m.?

Answer 2

clavicular - flexion of shoulder

sternocostal - extension of shoulder

Question 3

serratus anterior action?

Answer 3

protraction and upward rotation of scapula

Question 4

overall action of pectoralis major m.?

Answer 4

adduction & internal rotation of humerus

Question 5

3 types of fibres on the deltoid muscle?

Answer 5

anterior, middle and posterior

Question 6

name the actions of the 3 types of fibres of the deltoid muscle on the arm?

Answer 6

anterior - flexion and medial rotation
middle - abduction
posterior - extension and lateral rotation

Question 7

innervation of the deltoid m. fibres?

Answer 7

axillary n

Question 8

innervation - serratus anterior?

Answer 8

long thoracic n

Question 9

3 types of fibres - trapezius m.?

Answer 9

upper, middle and lower

Question 10

trapezius m. - name the actions of the 3 different fibre types on the scapula?

Answer 10

upper - elevation
middle - retraction
lower - depression

Question 11

innervation of the trapezius m.?

Answer 11

accessory n

Question 12

action of subscapularis?

Answer 12

medial rotation

Question 13

innervation of subscapularis?

Answer 13

subscapular

Question 14

combined action of both rhomboid muscles?

Answer 14

retract scapula

Question 15

innervation of teres minor?

Answer 15

axillary n

Question 16

action of teres minor?

Answer 16

external rotation of arm

Question 17

action of infraspinatus?

Answer 17

external rotation arm

Question 18

innervation of supra and infra- spinatus muscles?

Answer 18

suprascapular n

Question 19

innervation of subscapularis m.?

Answer 19

subscapular nerves

Question 20

2 actions of teres major?

Answer 20

medial rotation and adduction of humerus

Question 21

innervation of teres major?

Answer 21

subscapular n

Question 22

where does the serratus anterior m. attach to the scapula?

Answer 22

medial scapular margin

Question 23

innervation of coracobrachialis m.?

Answer 23

musculocutaneous n.

Question 24

action of the biceps?

Answer 24

flexor of elbow and shoulder, suppinates forearm

Question 25

innervation - biceps?

Answer 25

musculocutaneous n.

Question 26

action of coracobrachialis m.?

Answer 26

flexion of shoulder

Question 27

brachialis - action?

Answer 27

flexion of elbow

Question 28

brachialis - innervation?

Answer 28

radial and musculocutaneous nerves

Question 29

which nerve runs in the radial groove?

Answer 29

radial nerve

Question 30

which 2 structures run alongside the brachial artery?

Answer 30

radial & median nerve

Question 31

triceps - action?

Answer 31

extensor of elbow

Question 32

triceps - innervation?

Answer 32

radial nerve

Question 33

how and where does the brachial artery divide?

Answer 33

@ neck of radius - into radial and ulnar arteries

Question 34

where does ulnar n. run and how deep is it?

Answer 34

runs next to the medial epicondyle - lies very superficial

Question 35

which veins runs alongside the arteries of the forearm?

Answer 35

vena comitans

Question 36

where do the flexors of the forearm originate?

Answer 36

the medial epicondyle of the humerus

Question 37

name the fascia structure at the wrist joint?

Answer 37

flexor retinaculum