Upper Limb Anatomy

Question 1

Damage to which nerve causes winging of the scapula?

Answer 1

Long thoracic nerve injury

Question 2

Which nerve root involved in herbs palsy?

Answer 2

C5,6

Question 3

Features of Erbs palsy?

Answer 3

Adducted, medially rotated shoulder, elbow fully extended forearm pronated

Question 4

Which muscle is supplied by the long thoracic nerve?

Answer 4

Serratus anterior

Question 5

Which nerve is at risk during mastectomy/ nodal dissection?

Answer 5

Long thoracic

Question 6

Where does the flexor digit minimi originate from?

Answer 6

Hook of hamate

Question 7

As well as the long thoracic nerve, which other nerve is at risk during an axillary nerve dissection?

Answer 7

The Thoracodorsal nerve

Question 8

From which nerve root is the long thoracic nerve?

Answer 8

C5,6,7

Question 9

What are the features of Klumpkes palsy?

Answer 9

Claw hand, loss of sensation of medial forearm and hand, Horners syndrome, loss of wrist flexion

Question 10

Which nerve root is damaged in klumke palsy?

Answer 10

C8, T1

Question 11

How many extensor tunnels are found at the wrist?

Answer 11

6

Question 12

What triangle is the accessory nerve found in?

Answer 12

Posterior triangle of the neck

Question 13

Acronym and branches for axillary artery?

Answer 13

STLSAP - Superior thoracic, Throracoacromial, Lateral thoracic, subscapular, anterior humeral circumflex, posterior humeral circumflex

Question 14

What is the blood supply of the scaphoid bone?

Answer 14

the dorsal carpal branches

Question 15

How are the cords of the brachial plexus named?

Answer 15

in relation to the axillary artery - lateral, posterior, medial

Question 16

Branches of the subclavian artery?

Answer 16

VITCD - vertebral artery, internal thoracic artery, tuyrocerical artery, costocervical, dorsal scapular artery

Question 17

Which muscle attaches to the anterior elbow fibrous capusule?

Answer 17

brachialis

Question 18

Where does the subscapular muscle attach?

Answer 18

lesser tuberosity of humerus

Question 19

What causes flexion of the distal and proximal phalanges of hand?

Answer 19

proxima- superficialis, distal profundus

Question 20

What does the carpal tunnel contain?

Answer 20

flexor dig prof, flex dig sup, flex poll long

Question 21

What happens if the anterior interosseous nerve is damaged?

Answer 21

Loss of pincer of the thumb and index fingers

Question 22

What is pronator teres muscle innervated by?

Answer 22

Median nerve

Question 23

Where is the ulnar nerve in relation to the flexor retinaculum?

Answer 23

Superficial

Question 24

Where’s the ulnar artery in relation to the extensor retinaculu,?

Answer 24

Superfical

Question 25

Which artery supplies majority of blood to the breast?

Answer 25

Internal mammary artery

Question 26

Name medial and lateral borders of the anatomical snuffbox?

Answer 26

medial - extensor pol long, lateral abd pol long

Question 27

What is the risk of an aberrant ganzer muscle?

Answer 27

there is compression of the anterior interosseous nerve

Question 28

What makes up posterior cord?

Answer 28

STAR - subscapular, thoracodorsal, axillary, radial W

Question 29

Which nerve at risk with a surgical neck of humerus fracture?

Answer 29

the axillary nerve

Question 30

What causes nipple retraction in breast cancer?

Answer 30

infiltration of breast ligaments/ breast ducts

Question 31

Which muscle is predominantly responsible for internal rotation of the shoulder?

Answer 31

subscapular

Question 32

What effect would a transected axillary nerve have?

Answer 32

weak teres minor and reduced sensation on regimental badge

Question 33

where does supra scapular nerve branch of brachial plexus?

Answer 33

c5,6

Question 34

What are the 3 parts of the axillary artery related to?

Answer 34

the pectoralis minor

Question 35

Where does then lateral cutaneous nerve derrive from?

Answer 35

the musculocutaneous nerve