Joints of the Elbow Complex and Forearm

Question 1

Ulnohumeral and Radiohumeral Joints (Trochoginglymus)

Osteokinematic Movement, Joint Type, Innervation and Blood Supply

Answer 1

Osteokinematic Movement: Flexion, extension and abduction/adduction of ulna

Joint Type: Diarthrodial, modified-pivot hinge joint

Innervation: Musculocutaneus, radial and ulnar nerves

Blood Supply: Anastomosis around the elbow joint

Question 2

Radioulnar (Proximal)

Osteokinematic Movement, Joint Type, Innervation and Blood Supply

Answer 2

Osteokinematic Movement: Supination, pronation

Joint Type: Diarthrodial, ovoid, pivot joint

Innervation: Musculocutaneous, median and radial nerves

Blood Supply: Anastomosis around elbow joint

Question 3

Radioulnar (Distal)

Osteokinematic Movement, Joint Type, Innervation and Blood Supply

Answer 3

Osteokinematic Movement: Supination, pronation

Joint Type: Diarthrodial, ovoid, pivot joint

Innervation: Anterior and posterior interosseous nerves

Blood Supply: Anterior and posterior interosseous arteries