Scapular Region and Arm

Question 1

muscles in the anterior of the arm are supplied by…..

muscle function

Answer 1

the muscocutaneous nerve

flex arm at shoulder and flex forearm at elbow

Question 2

muscles in the posterior part of the arm are supplied by…..

muscle function

Answer 2

radial nerve

extend forearm at elbow

Question 3

muscles of the anterior compartment of the forearm are supplied by ………

muscle function

Answer 3

medial nerve and ulnar nerve

flex forearm, flex wrist, flex digits, pronate forearm

Question 4

muscles of the posterior compartment of the forearm are supplied by the……

muscle function

Answer 4

radial nerve

extend forearm, extend digits, supinate forearm

Question 5

muscles of the hand are mostly supplied by the….

muscle function

Answer 5

ulnar nerve (median nerve)

flex, abduct, adduct digits

Question 6

surgical neck

Answer 6

where the humerus often fractures

Question 7

spiral grove

Answer 7

where the radial nerve passes behind the humerus, traveling with deep branch of brachial artery

Question 8

trochlear notch

Answer 8

on the ulna, articulates with humerus forming a hinge joint

Question 9

pronation

Answer 9

hand is facing down

Question 10

supination

Answer 10

hand is facing up

Question 11

olecranon

Answer 11

hard part of the elbow, where the tendon of the tricep muscle attaches

Question 12

superficial veins of the arm

Answer 12

basilic, cephalic, median cubital (connects them both)

Question 13

action on scapula and nerve supply of the trapezius

Answer 13

elevates, retracts, depresses and rotates, supplied by spinal accessory (CN XI)

Question 14

action on scapula and nerve supply of the latissimus dorsi

Answer 14

extends, medially rotates, adducts, supplied by thoracodorsal (C6,7,8)

Question 15

action on scapula and nerve supply of the rhomboids

Answer 15

retracts, rotates inferiorly, supplied by dorsal scapular (C5)

Question 16

action on scapula and nerve supply of the serratus anterior

Answer 16

protracts, rotates supperiorly, supplied by the long thoracic nerve (C5,6,7)

Question 17

action on scapula and nerve supply of the levator scapulae

Answer 17

elevates, supplied by C3,4,5

Question 18

action and nerve supply of the supraspinatus muscle

Answer 18

initiates abduction, supplied by suprascapular nerve

Question 19

action and nerve supply of the infraspinatus muscle

Answer 19

laterally rotates, supplied by the suprascapular nerve

Question 20

action and nerve supply of the teres minor

Answer 20

laterally rotates, supplied by axiallry nerve

Question 21

action and nerve supply of the subscapularis upper

Answer 21

medially rotates, supplied by the lower subscapular nerve

Question 22

action and nerve supply of the deltoid muscle

Answer 22

abducts, extends and flexes, supplied by axillary nerve

Question 23

action and nerve supply of the teres major

Answer 23

extends, medially rotates, and adducts, supplied by lower subscapular nerve