Elbow Anatomy Quiz

What is the action of the Humeroulnar joint?

• Rotation and circumduction

• Flexion and extension

• Abduction and adduction

• Pronation and supination

Which structure is important for the extension at the elbow?

• Coronoid fossa

• Olecranon fossa

• Radial head

• Trochlea

What is the significance of the medial epicondyle?

• It is important for wrist extension.

• It is the insertion for the biceps brachii.

• It is important for wrist flexors.

• It is the insertion for the triceps brachii.

What does the carrying angle of the elbow create when it is normal?

• Normal varus (15 deg)

• Normal valgus (15 deg)

• Hyperextension

• Acute flexion

Which part of the distal humerus is important for flexion at the elbow?

• Radial groove

• Coronoid fossa

• Lateral epicondyle

• Capitulum

What is the action of the proximal radioulnar joint?

• Flexion and extension

• Rotation

• Glide and slide

• Abduction and adduction

Which ligament limits elbow varus?

• Annular ligament

• Ulnar collateral ligament

• Radial collateral ligament

• Accessory lateral collateral ligament

What is the range of motion for pronation at the osteokinematics of the elbow?

• 0-145

• 0-5

• 0-75

• 0-85

Which structure protects the triceps tendon?

• Olecranon bursa

• Interosseous membrane

• Radial collateral ligament

• Annular ligament

What is the function of the interosseous membrane?

• Limits elbow varus

• Protects the triceps tendon

• Transmits forces between the ulna and radius

• Limits elbow valgus