Upper Limb 2 - Station 1

Question 1

groove in the posterior humeral shaft

Answer 1

radial groove

Question 2

what nerve is damaged by a mid-humeral fracture

Answer 2

radial nerve

Question 3

space between greater and lesser tubercle

Answer 3

intertubercular sulcus

Question 4

tuberosity on the front of humerus and what attaches there

Answer 4

deltoid tuberosity - deltoid

Question 5

olecranon fossa is on the anterior/posterior of the humerus

Answer 5

posterior

Question 6

the capitulum and trochlea can be seen where on the humerus

Answer 6

at its distal end on the anterior

Question 7

fossa just superior to the trochlea is the _____ fossa

Answer 7

coronoid

Question 8

what does the head of the humerus articulate with

Answer 8

the glenoid cavity

Question 9

3 muscles on anterior compartment of the arm

Answer 9

biceps brachii, coracobrachialis, brachialis

Question 10

two origins of the biceps brachii

Answer 10

short head from coracoid process of scapula

long head from supraglenoid tubercle of scapula

Question 11

insertion of the biceps brachii

Answer 11

tuberosity of the radius

Question 12

supraglenoid tubercle is on the medial/lateral side of the scapula

Answer 12

lateral

Question 13

biceps is a supinator/pronator

Answer 13

supinator

Question 14

innervation of the biceps brachii

Answer 14

musculocutaneous - C5 but mainly C6

Question 15

which two anterior arm muscles share innervation

Answer 15

brachialis and biceps brachii - musculocutaneous (c5, C6)

Question 16

what cord does the musculocutaneous nerve arise

Answer 16

lateral cord

Question 17

two nerves that arise from the lateral cord

Answer 17

musculocutaneous and median

Question 18

action of biceps on elbow and shoulder

Answer 18

flexes elbow and shoulder joints

Question 19

action of coracobrachialis on shoulder joint

Answer 19

adduct and flex shoulder

Question 20

what nerve innervates all anterior arm muscles

Answer 20

musculocutaneous

Question 21

roots of coracobrachialis innervation

Answer 21

musculocutaneous - c5, C6, c7

Question 22

origin and insertion of the coracobrachialis

Answer 22

coracoid process of scapula to the middle third on medial humerus

Question 23

muscles which arise from the coracoid process

Answer 23

coracobrachialis and biceps brachii (short head)

Question 24

origin and insertion of the brachialis

Answer 24

anterior distal half of humerus to coronoid process of the ulna

Question 25

which is most superficial, biceps or brachialis?

Answer 25

biceps brachii

Question 26

innervation of brachialis, what muscle is it the same as

Answer 26

musculocutaneous - c5, C6, same as biceps brachii

Question 27

what muscle does the musculocutaneous perforate to enter the arm

Answer 27

coracobrachialis

Question 28

between which two muscles does the musculocutaneous nerve sit

Answer 28

biceps brachii and brachialis (underneath biceps, on top of brachialis)

Question 29

what is the musculocutaneous nerve called when it emerges from underneath the biceps and no longer supplies muscles

Answer 29

lateral cutaneous nerve

Question 30

what continuation of the musulocutaneous nerve supplies sensory to the lateral side of the forearm

Answer 30

lateral cutaneous nerve

Question 31

roots of musculocutaneous

Answer 31

C5, C6, C7

Question 32

summarise the supply of the musculocutaneous nerve

Answer 32

motor to biceps, brachialis and coracobrachialis

sensory to lateral side of forearm