Classification & Position

Question 1

Classify the elbow joint

Answer 1

Humero-ulnar joint = synovial hinge joint capable of one degree of freedom

*Humero-radial joint = synovial modified ball and socket joint - (annular ligament deepens the socket) -allowing rotation during supination/pronation

Question 2

Classify the radioulnar joints

Answer 2

• Superior radio-ulnar joint = synovial pivot joint
• Interosseous joint = fibrous
• Inferior radio-ulnar joint = synovial pivot joint