Q39 Supination

Question 1

Name the joints at which this movement occurs

Answer 1

Superior and inferior radio ulnar joints plus interosseous membrane

Question 2

State the type of joints

Answer 2

Sup and Inf Radio Ulnar joints are Synovial pivot, interosseous joint is fibrous

Question 3

Briefly describe the movement of the forearm in supination

Answer 3

Distal end of radius is carried back across the ulna to finish parallel with the ulna. With the elbow flexed the palm of the hand faces upwards.

Question 4

Name the muscles that produce supination

Answer 4

Supinator, Biceps brachii, Brachioradialis

Question 5

Give 2 functional activities in which this movement is important

Answer 5

Tightening screws, Carrying a tray, receiving money change when shopping