Bones

Question 1

Radius

Answer 1

Lateral side of the elbow to the thumb side of the wrist
Two expanded ends, of which the distal end is the larger

Upper end
Articular cartilage - covers medial > lateral side
Articulates with radial notch of the ulna by the annular ligament
Muscle attachment - biceps brachii at the tuberosity

Upper third of the body - Supinator, Flexor digitorum superficialis, Flexor pollicis longus

Middle third of the body - Pronator teres

Lower quarter of the body - Pronator quadratus, Tendon of supinator longus

Lower end
Anterior surface - capsule of wrist joint
Medial surface - head of ulna
Lateral surface - ends in the styloid process
Posterior surface - 3 grooves containing - tendons of extensor carpi radialis longus and brevis, tendon of extensor pollicis longus, tendon of extensor indicis