Topic 6 - Carpal flexors and pronaters of the radioulnar joint

Question 1

M.pronator teres

Answer 1

O: Med. epicondyle of humerus
I: Craniomed. surface of the prox. of radius
A: Pronates forearm - rotate med.

Question 2

M.pronator quadratus

Answer 2

Connects the apposed surfaces of radius and ulna, fills interosseous space.
A: Pronates forearm - rotate med.

Question 3

M.flexor carpi radialis

Answer 3

O: Med. epicondyle of humerus, behind collateral lig.
I: On the palmar aspect of the base of Mc2+3
A: Flex carpus

Question 4

M.flexor carpi ulnaris

Answer 4

O: -caput humerale from med. epicondyle of humerus, -caput ulnare from olecranon. Humeral head is muscular, ulnar is tendionous and thin.
I: Usually one short tendon to the accessory carpal bone.
A: Flex carpus

Question 5

The muscles

Answer 5

M.pronator teres
M.pronator quadratus
M.flex.carpi radialis
M.flex.carpi ulnaris