Wrist and Hand

Question 1

What are the 2 joints of the wrist?

Answer 1

Midcarpal Joint & Radiocarpal Joint

Question 2

What are the carpal bones?

Answer 2

• Scaphoid
• Lunate
• Triquetrum
• Pisiform
• Trapezoid
• Trapezium
• Capitate
• Hamate

Question 3

All flexors of the wrist originate at…….

Answer 3

medial epicondyle

Question 4

All extensors of the wrist originate at…..

Answer 4

lateral epicondyle

Question 5

Extensors are innervated by the _____ nerve

Answer 5

radial

Question 6

Flexors are innervated by the ______ and _____ nerves

Answer 6

ulnar; median

Question 7

What are the 4 main ligaments of the wrist?

Answer 7

1) radial collateral ligament
2) ulnar collateral ligament
3) palmar radiocarpal ligament
4) dorsal radiocarpal ligament

Question 8

What is the most commonly fractured carpal bone?

Answer 8

the scaphoid

Question 9

A fracture of the 4th or 5th metacarpal neck is known as a…….

Answer 9

boxers fracture

Question 10

Distal radial fracture resulting most commonly from falling on an outstretched hand is known as…..

Answer 10

colle’s fracture

Question 11

opposite of a Colle’s fracture…..also a distal radial fracture but contact is on the back of hand first

Answer 11

smith’s fracture

Question 12

What is the purpose of the hand?

Answer 12

• fine coordinated mvmts
• complete simple to complex tasks
• ADL/leisure activities

Question 13

What are the bones of the hand?

Answer 13

1) carpal bones
2) metacarpal bones
3) proximal phalanges
4) medial phalanges
5) distal phalanges

Question 14

These muscles originate and insert within the hand…..

Answer 14

intrinsic muscles

Question 15

These muscles originate outside of the hand, usually in the forearm, and insert within the hand…..

Answer 15

extrinsic muscles