Radioulnar and Manus Muscels

Question 1

M. supinator origin

Answer 1

Lateral epicondyle of the humerus and lateral collateral ligament of the elbow

Question 2

M. supinator insert

Answer 2

Cranial surface of the proximal radius

Question 3

M. supinator function

Answer 3

Supination of the antebrachium and Manus

Question 4

M. pronator teres origin

Answer 4

Medial epicondyl of the humerus

Question 5

M. pronator teres insert

Answer 5

Cranio-medial margin of the proximal radius

Question 6

M. pronator teres function

Answer 6

Pronation of the antebrachium and Manus

Question 7

M. pronator quadratus origin

Answer 7

Medial margin of the ulna

Question 8

M. pronator quadratus insert

Answer 8

Caudal surface of the radius

Question 9

M. pronator quadratus function

Answer 9

Pronation of the antebrachium and Manus

Question 10

M. extensor carpi radialis origin

Answer 10

Crista supracondylaris of the humerus

Question 11

M. extensor carpi radialis insert

Answer 11

Proximo-dorsal ends of McII and McIII

Question 12

M. extensor carpi radialis function

Answer 12

Extension of the carpus, flexion of the elbow joint

Question 13

M. extensor digitorum communis origin

Answer 13

Lateral epycondyle of the humerus

Question 14

M. extensor digitorum communis insert

Answer 14

Dorsal aspect of the Crista unguicularis (P3 of digits II-V)

Question 15

M. extensor digitorum communis function

Answer 15

Extension of the carpus and digits II-V

Question 16

M. extensor digitorum lateralis origin

Answer 16

Lateral epicondyl of the humerus

Question 17

M. extensor digitorum lateralis insert

Answer 17

Dorsal aspect of the Crista unguicularis (P3 of digits III-V) via the tendons of the M. extensor digitorum communis

Question 18

M. extensor digitorum lateralis function

Answer 18

Extension of digits III-V

Question 19

M. extensor carpi ulnaris (M. ulnaris lateralis) origin

Answer 19

Lateral epicondyl of the humerus

Question 20

M. extensor carpi ulnaris (M. ulnaris lateralis) insert

Answer 20

Proximo-lateral end of McV and accessory carpal bone

Question 21

M. extensor carpi ulnaris (M. ulnaris lateralis) function

Answer 21

Flexion(!!!) of the carpus

Question 22

M. abductor digiti I longus origin

Answer 22

Lateral surfaces of the radius and ulna

Question 23

M. abductor digiti I longus insert

Answer 23

Proximo-medial end of McI (there’sa a sesamoid bone in the tendon of insertion)

Question 24

M. abductor digiti I longus function

Answer 24

Abduction of digit I

Question 25

M. flexor carpi radialis origin

Answer 25

Medial epicondyl of the humerus

Question 26

M. flexor carpi radialis insert

Answer 26

Proximo-palmar ends of McII and McIII

Question 27

M. flexor carpi radialis function

Answer 27

Flexion of the carpus

Question 28

M. flexor digitorum superficialis origin

Answer 28

Medial epicondyl of the humerus

Question 29

M. flexor digitorum superficialis insert

Answer 29

Palmar tubercule proximally on P2 of digits II-V

Question 30

M. flexor digitorum superficialis function

Answer 30

Flexion of the metacarpophalangeal joint and proximal interphalangeal joint of digits II-V; flexion of the carpus

Question 31

M. flexor carpi unlaris origin

Answer 31

Caput ulnare: Medial surface of the Olecranon

Caput humeral: Medial epicondyl of the humerus

Question 32

M. flexor carpi unlaris insert

Answer 32

Distal end of the Os carpi accessorium

Question 33

M. flexor carpi unlaris function

Answer 33

Flexion of the carpus; passive support of the carpus and prevention of excessive over-extension when weight bearing

Question 34

M. flexor digitorum profundus origin

Answer 34

Caput humeral: Medial epicondyl
Caput radiale: Caudo-medial aspect
Caput ulnare: Caudal border

Question 35

M. flexor digitorum profundus insert

Answer 35

Tuberculum flexorium of P3 of digits I-V

Question 36

M. flexor digitorum profundus function

Answer 36

Flexion of the digitd (all joints) and carpus

Question 37

Mm. interossei origin

Answer 37

Palmar carpal fibrocartilage and proximo-palmar ends of McII-V

Question 38

Mm. interossei insert

Answer 38

Proximo-palmar ends of P1 of digits II-V

Question 39

Mm. interossei function

Answer 39

Flexion of the metacarpophalageal joint