Elbow and Radio-Ulnar Joints

Question 0

What are limiting structures of elbow extension

Answer 0

Muscles: flexor muscles of elbow
Joint capsule:anteriorly
Bony apposition between the olecranon on the ulna and olecranon fossa of humerus

Question 1

What joints extend the elbow?

elbow extension

Answer 1

Humeo-ulnar

Humeroradial

Question 2

What joints flex the elbow?

Answer 2

Humero-ulnar

Humeroradial

Question 3

What are limiting structures of flexion in elbow?

Answer 3

Muscles: triceps brachii
Joint Capsule: posteriorly
Soft tissue apposition between anterior forearm and arm
Bony Apposition between head of radius and radial fossa of humerus

Question 4

What joints pronate? Pronation

Answer 4

Humeroradial
Proximal radio-ulnar
Distal radio-ulnar
Interosseous membrane

Question 5

Limiting structures of pronation

Answer 5

Muscles: supinator, biceps brachii
Ligaments: dorsal inferior radio-ulnar, interosseous membrane
Bone apposition of the radius on ulna

Question 6

What joints supinate? Supination

Answer 6

Humeroradial
Proximal radio-ulnar
Distal radio-ulnar

Question 7

What are the limiting structures of supination?

Answer 7

Muscles: pronator teres, pronator quadratus
Ligaments: anterior inferior radio-ulnar, interosseous membrane