Wrist Joint

Question 1

Name the four major ligaments of the wrist joint and their attachments

Answer 1

Radial collateral ; from radius inferior border to scaphoid + trapezium
Ulnar collateral; from ulnar inferior border to pisiform and triquetral
Palmar carpal ligament; anterior radius lower margin to scaphoid, lunate, triquetral and capitate
Dorsal carpal ligament; posterior radius lower margin to scaphoid, lunate, and triquetral

Question 2

State the order from medial to lateral of the structures passing through the wrist joint

Answer 2

Tendon of flexor carpi ulnaris 
Ulnar nerve 
Ulnar vessels 
Tendons of flexor digitorum superficialis and profundus 
Palmaris longus tendon on top 
Median nerve 
Flexor pollicis longus tendon 
Flexor carpi radialis tendon 
Radial vessels

Question 3

Which structures pass on top of the flexor retinaculum anteriorly?

Answer 3

Palmaris longus tendon
Ulnar Nerve
Ulnar vessels

Question 4

What is a clinical symptom of a scaphoid fracture?

Answer 4

Tenderness in anatomical snuffbox

Question 5

The wrist joint is innervated by which 3 nerves?

Answer 5

Radial
Ulnar
Median

Question 6

What is the blood supply to the wrist joint?

Answer 6

Palmar and dorsal carpal arches from radial and ulnar arteries and they anastomose with anterior and posterior interosseous arteries respectively

Question 7

Ganglion cysts are caused by?

Answer 7

Degeneration of synovial sheaths around tendons.

Question 8

The volar carpal ligament is another name for which ligament?

Answer 8

palmar carpal ligament

Question 9

What structures pass through Guyon’s canal?

Answer 9

Ulnar nerve + vessels