Elbow Wrist and Hand

Question 1

pronator teres

Answer 1

0 –Medial epicondyle of the humerus and coronoid process of the ulna
I –Middle of lateral surface of the radius
N –Median
A –pronates and flexes forearm

Question 2

Palmaris longus

Answer 2

0 –Medial epicondyle of humerus
I –flexor retinaculum and palmar aponeurosis
N –Median nerve
A –flexes hand

Question 3

Flexor digitorum superficialis

Answer 3

0 –medial epicondyle of the humerus, corocoid process of the ulna and the anterior border of the radius
I –Bodies of the middle phalangesof the medial four digits
N –Median nerve
A –flexes the middle phalanges of the medial four digits, the proximal phalanges and hand

Question 4

Flexor pollicis longus

Answer 4

0 –Anterior surface of the radius and interosseous membrane
I –base of the distal phalanx of the thumb
N –Anterior interosseous nerve
A –Flexes phalanges of thumb

Question 5

Flexor digitorum profundus

Answer 5

0 –Proximal three-fourths of medial and anterior surface of the ulna and interosseous membrane
I –base of the distal phalanges of the medial four digits
N –Medial part is ulnar Lateral part is median
A –flexes the distal phalanges of the medial four digits

Question 6

Pronator quadratus

Answer 6

0 –Distal, anterior surface of ulna
I –Distal, anterior surface of the radius
N –Anterior interosseous nerve
A –Pronates the forearm

Question 7

Abductor pollicus brevis

Answer 7

O – scaphoid and trapezium
I – lateral side of base of proximal phalanx
N – Recurrent branch of the Median nerve
A – Abducts thumb at carpometacarpal joint

Question 8

Flexor pollicis brevis (Superficial head)

Answer 8

O – Flexor retinaculum and trapezium
I – lateral side of base of proximal phalanx
N – Recurrent branch of the Median nerve
A – Flex thumb
(deep head: Ulanr N. superficail head: Median N)

Question 9

Opponens pollicis

Answer 9

O – flexor retinaculum and trapezium
I – Lateral side of the first metacarpal
N – Recurrent branch of the Median nerve
A – Oppose thumb

Question 10

Lumbricals

Answer 10

O – tendons of the flexor digitorum profundus
I – lateral side of the extensor expansions
N – Lumbricals 1 and 2 - median nerveLumbricals 3 and 4 - ulnar nerve
A – flex the MP joints and extend the proximalIPjoints

Question 11

Supinator

Answer 11

0 –Lateral epicondyle of the humerus i
I –lateral, posterior and anterior surfaces of the proximal third of the radius
N –deep branch of the radial nerve
A –supinates the forearm

Question 12

Adductor pollicis

Answer 12

Oblique head
O – carpal bones and bases of metacarpals 2 and 3
I – base of proximal phalanx of thumb(c)N – Ulnar nerve
A – Adduct thumb

Transverse head
O – shaft of the 3rd metacarpal
I – Base of the proximal phalanx of the thumb
N – Ulnar nerve
A – Adduct thumb

Question 13

Brachioradialis

Answer 13

0 –Proximal two-thirds of the lateral supracondylar ridge of humerus
I –lateral surface of the distal end of the radius
N –radial nerve
A –flexes forearm

Question 14

Palmar interossei

Answer 14

PAD - three
O – sides of metacarpalbones
I – Base of the proximal phalanges and extensor expansion
N – Ulnar nerve
A – adduct fingers - PAD

Question 15

Adductor pollicis

Answer 15

Oblique head
O – carpal bones and bases of metacarpals 2 and 3
I – base of proximal phalanx of thumb(c)N – Ulnar nerve
A – Adduct thumb

Transverse head
O – shaft of the 3rd metacarpal
I – Base of the proximal phalanx of the thumb
N – Ulnar nerve
A – Adduct thumb

Question 16

Opponens digiti minimi

Answer 16

O – Hamate
I – Medial border of 5th metacarpal
N – Ulnar nerve
A – Oppose the 5th digit

Question 17

Flexor digiti minimi

Answer 17

O – Hamate
I – Base of the proximal phalanx of the 5th digit
N – Ulnar nerve
A – flexes 5th digi

Question 18

Abductor digiti minimi

Answer 18

O – Pisiform
I – Base of the proximal phalanx of the 5th digit
N – Ulnar nerve
A – Abduction

Question 19

Abductor pollicis longus

Answer 19

O – posterior surface of the middle ulna, radius and interosseous membrane
I – base of the 1stmetacarpal
N – Posterior Interosseous nerve
A – abducts thumb

Question 20

Extensor carpi ulnaris

Answer 20

O – Lateral epicondyle
I – base of the 5th metacarpal
N – Posterior Interosseous nerve
A – extends and ulnar deviates the wrist

Question 21

Abductor pollicis longus

Answer 21

O – posterior surface of the middle ulna, radius and interosseous membrane
I – base of the 1stmetacarpal
N – Radial N, . Posterior Interosseous nerve
A – abducts thumb

Question 22

Extensor carpi ulnaris

Answer 22

O – Lateral epicondyle
I – base of the 5th metacarpal
N – Radial N, .Posterior Interosseous nerve
A – extends and ulnar deviates the wrist

Question 23

Extensor digiti minimi

Answer 23

O – lateral epicondyle
I – extensor expansion of digit 5
N – Radial N, . Posterior Interosseous nerve
A – extends the 5th digit

Question 24

Extensor pollicis brevis

Answer 24

O – middle one third posterior surface or radius and interosseous membrane
I – base of the proximal phalanx of the thumb
N – Radial N, . Posterior Interosseous nerve
A – extends thumb

Question 25

Extensor pollicis longus

Answer 25

O – Middle one third of the posterior surface of the ulna and interosseous membrane
I – base of the distal phalanx of the thumb
N – Radial N, .Posterior interosseous nerve
A – extends the thumb

Question 26

Extensor pollicis longus

Answer 26

O – Middle one third of the posterior surface of the ulna and interosseous membrane
I – base of the distal phalanx of the thumb
N – Radial N, .Posterior interosseous nerve
A – extends the thumb

Question 27

Extensor digitorum

Answer 27

O – lateral epicondyle of the humerus
I – extensor expansions
N – Radial N. Posterior Interosseous nerve
A – extend fingers digits 2 through 5

Question 28

Extensor indicis

Answer 28

O – posterior surface of the ulna and interosseous membrane
I – extensor digitorum tendon to index finger
N – Radial N. Posterior interosseous nerve
A – extends the index finge

Question 29

Flexor carpi ulnaris

Answer 29

0 –Medial epicondyle of humerus, olecranon and ulna
I –Pisiform, hook of the hamate and 5th metacarpal
N –Ulnar nerve
A –flexes hand, ulnar deviates hand

Question 30

Flexor digitorum profundus (3-4)

Answer 30

0 –Proximal three-fourths of medial and anterior surface of the ulna and interosseous membrane
I –base of the distal phalanges of the medial four digits
N –Medial part is ulnar Lateral part is median
A –flexes the distal phalanges of the medial four digits

Question 31

Palmaris Brevis

Answer 31

ulnar N

Question 32

Flexor carpi radialis

Answer 32

RIGIN: Medial epicondyle of the humerus.

INSERTION: Base of the 2nd and 3rd metacarpal bones.

ACTION: Flexion of the wrist and abduction of the hand.

NERVE SUPPLY: Median nerve (C6-C7).