Hand and Wrist

Question 1

The flexor retinaculum is formed from which fascia?

Answer 1

Antebrachial fascia

Question 2

What are the attachments of the flexor retinaculum?

Answer 2

Lateral - scaphoid

Medial - pisiform and hamate

Question 3

The distal tendon of which muscle strengthens the flexor retinaculum?

Answer 3

Palmaris longus

Question 4

The carpal tunnel is a combination of what?

Answer 4

Carpal bones (posteriorly)
Flexor retinaculum (anteriorly)

Question 5

What is contained within the carpal tunnel?

Answer 5

Tendon of FPL
Four tendons of FDS
Four tendons of FDP
Median nerve

Question 6

In carpal tunnel syndrome, why is sensation of the central palm unaffected?

Answer 6

As the palmar cutaneous branch supplying it is given off proximal to the tunnel

Question 7

The superficial palmar arch is formed from what?

Answer 7

Anastamosis of superficial palmar branches of ulnar and radial arteries

Question 8

The deep palmar arch is formed from what?

Answer 8

Anastomosis of the deep branches of ulnar and radial arteries

Question 9

Which fascia is affected in Dupuytren’s?

Answer 9

Palmar fascia

Question 10

What are the four neurovascular bundles supplying each finger?

Answer 10

Medial palmar
Lateral palmar
Medial dorsal
Lateral dorsal

Question 11

What is a ring block?

Answer 11

When anaesthetic is used in a ring around the base of the finger to anaesthetise all digital nerves

Question 12

On the palmar aspect of the hand, the ulnar nerve supplies what?

Answer 12

Medial part of palm
Little finger
Medial half of ring finger

Question 13

On the palmar aspect of the hand, the median nerve supplies what?

Answer 13

Central/lateral palm
Medial half of ring finger
First three digits

Question 14

On the palmar aspect of the hand, the radial nerve supplies what?

Answer 14

Skin over base of thumb

Question 15

The FDS, FDP and FPL tendons and their synovial sheaths travel distally through what?

Answer 15

Fibrous digital sheathes

Question 16

Tenderness in the anatomical snuff box suggests what?

Answer 16

Scaphoid fracture

Question 17

On the dorsum, what is supplied by the ulnar nerve?

Answer 17

Medial part of dorsum
Little finger
Medial half of ring finger

Question 18

The median nerve supplies what on the dorsum?

Answer 18

Skin over distal phalanges/thumb of thumb, index finger and middle finger

Question 19

The radial nerve supplies what on the dorsum?

Answer 19

Skin over anatomical snuffbox
Lateral part of dorsum
Proximal index, middle and lateral half of ring finger

Question 20

The lumbricals attach between where?

Answer 20

FDP tendon and extensor expansion of the same digit

Question 21

What are the actions of the lumbricals?

Answer 21

Flex MCPs

Extend PIPs

Question 22

What nerves supply the lumbricals?

Answer 22

Ulnar - medial lumbricals (ring and little)

Radial - lateral lumbricals (middle and index)

Question 23

The palmar interossei abduct the digits and the dorsal interossei adduct the digits. True/false?

Answer 23

False - palmar interossei adduct and dorsal interossei abduct