The Hand

Question 1

Types of bones

Answer 1

Carpal bones - 8 irregularly shaped bones in the wrist area
Metacarpals - 5 metacarpals each related to a digit
Phalanges - bones of the fingers, each digit has 3 except the thumb which has 2

Question 2

Carpal bones

Answer 2

Scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate

(Some Lovers Try Positions That They Can’t Handle)

Question 3

Scaphoid fracture

Answer 3

Falling on outstretched hand
Pain in anatomical snuffbox
Blood supply distal to proximal so avascular necrosis can occur
Missed scaphoid fracture can lead to arthritis

Question 4

Lunate fracture

Answer 4

Hyperextension at the wrist

Associated with damage to median nerve

Question 5

Metacarpal bones

Answer 5

1. Thumb
2. Index finger
3. Middle finger
4. Ring finger
5. Little finger

Each consists of base, shaft and head
Lateral and medial surfaces concave to allow attachment interossei muscles to attach

Question 6

Boxer’s fracture

Answer 6

Fracture of 5th metacarpal neck
Clenched fist striking a hard object
Distal part displaced posteriorly - shortening of 5th finger

Question 7

Bennett’s fracture

Answer 7

Fracture of 1st metacarpal base
Extends into the carpometacarpal joint
Caused by hyperabduction of the thumb

Question 8

Phalanges

Answer 8

Thumb - proximal and distal phalanx

Digits - Proximal, middle and distal phalanges