Muscles Of The Hand (2)

Question 1

What is the origin of the opponens pollicis?

Answer 1

Flexor retinaculum

Tubercles of scaphoid and trapezium

Question 2

What is the attachment of the opponens pollicis?

Answer 2

Lateral side of 1st metacarpal

Question 3

What is the function of the opponens pollicis?

Answer 3

Oppose thumb

Question 4

What is the origin of the abductor pollicis brevis?

Answer 4

Flexor retinaculum

Tubercles of scaphoid and trapezium

Question 5

What is the attachment of the abductor pollicis brevis?

Answer 5

Lateral side of 1st digit at base of distal phalanx

Question 6

What is the function of the abductor pollicis brevis?

Answer 6

Abducts thumb

Helps oppose thumb

Question 7

What is the origin of the flexor pollicis brevis?

Answer 7

Flexor retinaculum

Tubercles of scaphoid and trapezium

Question 8

What is the attachment of the flexor pollicis brevis?

Answer 8

Lateral side of 1st digit at base of distal phalanx

Question 9

What is the function of the flexor pollicis brevis?

Answer 9

Flexes thumb

Question 10

What is the origin of the oblique head of the adductor pollicis?

Answer 10

Bases of 2 and 3 metacarpals, capitate, and adjacent carpals

Question 11

What is the origin of the transverse head of the adductor pollicis?

Answer 11

Anterior surface of 3rd metacarpal shaft

Question 12

What is the attachment of the adductor pollicis?

Answer 12

Medial side of 1st digit at base of proximal phalanx

Question 13

What is the function of the adductor pollicis?

Answer 13

Adducts thumb towards lateral border of palm

Question 14

What is the origin of the abductor digiti minimi?

Answer 14

Pisiform

Question 15

What is the attachment of the abductor digiti minimi?

Answer 15

Pisiform

Question 16

What is the function of the abductor digiti minimi?

Answer 16

Abducts 5th digit

Question 17

What is the origin of the flexor digiti minimi brevis?

Answer 17

Hook of hamate and flexor retinaculum

Question 18

What is the attachment of the flexor digiti minimi brevis?

Answer 18

Medial side of 5th digit at base of proximal phalanx

Question 19

What is the function of the flexor digiti minimi brevis?

Answer 19

Flexes proximal phalanx of 5th digit

Question 20

What is the origin of the opponens digiti minimi?

Answer 20

Hook of hamate and flexor retinaculum

Question 21

What is the attachment of the opponens digiti minimi?

Answer 21

Medial border of 5th metacarpal

Question 22

What is the function of the opponens digiti minimi?

Answer 22

Draws 5th metacarpal anterior and rotates it

Question 23

What is the origin of the 1st and 2nd Lumbricals?

Answer 23

Lateral 2 tendons of flexor digitorum profundus

Question 24

What is the origin of the 3rd and 4th Lumbricals?

Answer 24

Medial 3 tendons of flexor digitorum profundus

Question 25

What is the attachment of the Lumbricals?

Answer 25

Lateral side of extensor Expansions of 2-5 digits

Question 26

What is the function of the Lumbricals?

Answer 26

Flex MCP joints Extends IP joints

Question 27

What is the origin of the dorsal interossei?

Answer 27

Adjacent sides of 2 metacarpals

Question 28

What is the attachment of the dorsal interossei?

Answer 28

Bases of proximal phalanges Extensor expansions of 2-4 digits

Question 29

What is the function of the dorsal interossei?

Answer 29

Abducts 2-4 digits from axial line Acts with Lumbricals

Question 30

What is the origin of the palmar interossei?

Answer 30

Palmar surface of 2,4 and 5 metacarpals

Question 31

What is the attachment of the palmar interossei?

Answer 31

Bases of proximal phalanges Extensor expansions of 2, 4, and 5 digits

Question 32

What is the function of the palmar interossei?

Answer 32

Adducts 2, 4, and 5 digits towards axial line Assists Lumbricals

Question 33

What will happen to everything distal of compression site?

Answer 33

It will lose function

Question 34

What are the important compression zones of the median nerve?

Answer 34

Pronator teres Carpal tunnel

Question 35

What are the important compression zones of the ulnar nerve?

Answer 35

Cubital tunnel Guyons canal

Question 36

What are the important compression zones of the radial nerve?

Answer 36

Triangular interval Supinator (arcade of froshe)

Question 37

What is the anterior interosseus nerve a branch of?

Answer 37

Median nerve

Question 38

What are the branches of the radial nerve?

Answer 38

Deep radial nerve Posterior interosseus