Week 9 - Elbow, Wrist and Hand

Question 1

Which joint is responsible for pronation and supination of the hand?

Answer 1

Radioulnar

Question 2

Biceps brachi origin insertion actions

Answer 2

Origin- LH= upper lip of glenoid fossa SH=coracoid process of scapula
Insertion- radial tuberosity

Actions: elbow flexion, supination

Question 3

Brachialis origin insertion actions

Answer 3

Origin- anterior distal humerus
Insertion- coranoid process

Actions: elbow flexion

Question 4

Brachioradialis origin insertion actions

Answer 4

Origin- lateral humerus
Insertion- distal radius

Actions: elbow flexion, pronation and supination

Question 5

Name two other pronating muscles

Answer 5

Pronator teres

Pronator quadratus