Muscles of the Radioulnar joints

Question 1

Origin of M. supinator

Answer 1

Lateral epicondyle of the Humerus and lateral collateral ligament of the elbow. In 25-30% of dogs, a small sesamoid bone is present in the tendon of origin

Question 2

Insertion of M. supinator

Answer 2

Cranial surface of the proximal Radius

Question 3

Function of M. supinator

Answer 3

Supination of the Antebrachium and Manus

Question 4

Origin of M. pronator teres

Answer 4

Medial epicondyle of the Humerus

Question 5

Insertion of M. pronator teres

Answer 5

Crani-medial margin of the proximal Radius

Question 6

Function of M. pronator teres

Answer 6

Pronation of the Antebrachium and Manus

Question 7

Origin of M. pronator quadratus

Answer 7

Medial margin of the Ulna

Question 8

Insertion of M. pronator quadratus

Answer 8

Caudal surface of the Radius

Question 9

Function of M. pronator quadratus

Answer 9

Pronation of the Antebrachium and Manus