Ulna

Question 1

What muscle attaches to the superior surface of the olecranon

Answer 1

Triceps brachii

Question 2

Which area on the ulna articulates with the head of the radius

Answer 2

Radial notch

Question 3

What muscle attaches to the tuberosity of ulna

Answer 3

Brachialis

Question 4

What muscle attaches to the anterior surface of the ulna

Answer 4

Pronator quadratus (distally)

Question 5

What attaches to the interosseous border

Answer 5

Interosseous membrane

Question 6

Where does the ulna articulate with the radius distally

Answer 6

Ulnar notch

Question 7

Where is the most common site of an ulna fracture

Answer 7

Shaft

Question 8

How is the proximal ulna displaced in an ulna shaft fracture

Answer 8

Posteriorly

Question 9

What displacement is seen in an olecranon process fracture

Answer 9

Triceps brachii can displace part of the fragment proximally

Question 10

What is Monteggia’s fracture

Answer 10

Proximal shaft of ulna fracture
Head of radius dislocates anteriorly at the elbow
Usually caused by force from behind the ulna

Question 11

What is Galeazzi’s fracture

Answer 11

Distal radius fracture

Ulna head dislocating at the distal radio-ulnar joint