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MJM > AP05 - Elbow, wrist and hand > Flashcards

AP05 - Elbow, wrist and hand Flashcards

1
Q

What are the muscles of the anterior compartment of the forearm in the superficial layer?

A
  1. Pronator teres
    - Humeral head
    - Ulnar head
  2. Flexor carpai radialis
  3. Palmaris longus
  4. Flexor carpi ulnaris
    - Humeral head
    - Ulnar head
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2
Q

What is the innervation of the pronator teres muscle?

A

Median nerve (C6-C7)

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3
Q

What is the innervation of the flexor carpi radialis?

A

Median nerve (C6-C7)

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4
Q

What is the innervation of the flexor carpi ulnaris?

A

Ulnar nerve (C7-C8)

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5
Q

What is the innervation of the palmaris longus?

A

Median nerve (C7-C8)

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6
Q

Where is the proximal attachment of the ulnar head of the pronator teres?

A

Coronoid process

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7
Q

Where is the proximal attachment of the humeral head of the pronator teres?

A

Medial epicondyle of humerus (common flexor origin)

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8
Q

Where is the proximal attachment of the palmaris longus?

A

Medial epicondyle of humerus (common flexor origin)

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9
Q

Where is the proximal attachment of the ulnar head of the flexor carpi ulnaris?

A

Olecranon and posterior border of ulna (via aponeurosis)

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10
Q

Where is the proximal attachment of the humeral head of the flexor carpi ulnaris?

A

Medial epicondyle of humerus (common flexor origin)

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11
Q

Where is the distal attachment of the ulnar head of the pronator teres?

A

Middle of convexity of lateral surface of radius

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12
Q

Where is the distal attachment of the humeral head of the pronator teres?

A

Middle of convexity of lateral surface of radius

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13
Q

Where is the distal attachment of the flexor carpi radialis?

A

Base of 2nd metacarpal

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14
Q

Where is the distal attachment of the ulnar head of the flexor carpi ulnaris?

A

Pisiform, hook of hamate, 5th metacarpal

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15
Q

Where is the distal attachment of the palmaris longus?

A

Distal half of flexor retinaculum and apex of palmar aponeurosis

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16
Q

What are the muscles of the anterior compartment of the forearm in the intermediate layer?

A
  1. Flexor digitorum superficialis
    - Humero-ulnar head
    - Radial head
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17
Q

Where is the proximal attachment of the humero-ulnar head of the flexor digitorum superficialis?

A

Medial epicondyle (Common flexor origin and coronoid process)

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18
Q

Where is the proximal attachment of the radial head of the flexor digitorum superficialis?

A

Superior half of anterior border`

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19
Q

Where is the distal attachment of the flexor digitorum superficialis

A

Shafts of middle phalanges of medial four digits

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20
Q

What is the innervation of the flexor digitorum superficialis

A

Median nerve (C7, C8 and T1)

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21
Q

What are the muscles of the anterior compartment of the forearm in the deep layer?

A
  1. Flexor digitorum profundus
    - Medial part
    - Lateral part
  2. Flexor pollicis longus
  3. Pronator quadratus
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22
Q

What is the innervation of the medial part of the flexor digitorum profundus?

A

Ulnar nerve (C8,T1)

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23
Q

What is the innervation of the lateral part of the flexor digitorum profundus?

A

Ant interosseous nerve from median nerve (C8,T1)

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24
Q

What is the innervation of the flexor pollicis longus?

A

Ant interosseous nerve from median nerve (C8,T1)

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25
Q

What is the innervation of the pronator quadratus?

A

Ant interosseous nerve from median nerve (C8,T1)

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26
Q

Where is the proximal attachment of the medial part of the flexor digitorum profundus?

A

Proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane

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27
Q

Where is the proximal attachment of the lateral part of the flexor digitorum profundus?

A

Proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane

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28
Q

Where is the proximal attachment of the flexor pollicis longus?

A

Ant surface of radius and adjacent interosseous membrane

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29
Q

Where is the proximal attachment of the pronator quadratus

A

Distal quarter of anterior surface or ulna

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30
Q

Where is the distal attachment of the lateral part of the flexor digitorum profundus?

A

Bases of distal phalanges of 2nd and 3rd digits

31
Q

Where is the distal attachment of the medial part of the flexor digitorum profundus?

A

Bases of distal phalanges of 4th and 5th digits

32
Q

Where is the distal attachment of the flexor pollicis longus?

A

Base of distal phalanx of thumb

33
Q

Where is the distal attachment of the pronator quadratus

A

Distal quarter of anterior surface of radius

34
Q

What are the muscles in the superficial layer of the posterior compartment of the forearm?

A
  1. Brachioradialis
  2. Exntensor carpi radialis longus
  3. Extensor carpi radialis brevis
  4. Exnesor digitorum
  5. Extensor digitiminimi
  6. Extensor carpi ulnaris
  7. Anconeus
35
Q

Where is the proximal attachment of the brachioradilis?

A

Proximal 2/3 of supra-epicondylar ridge of humerus

36
Q

Where is the proximal attachment of the extensor carpi radialis longus?

A

Lateral supra-epicondylar ridge of humerus

37
Q

Where is the proximal attachment of the extensor carpi radialis brevis?

A

Lateral epicondyle of humerus (common extensor origin)

38
Q

Where is the proximal attachment of the extensor digitorum?

A

Lateral epicondyle of humerus (common extensor origin)

39
Q

Where is the proximal attachment of the extensor digiti minimi?

A

Lateral epicondyle of humerus (common extensor origin)

40
Q

Where is the proximal attachment of the extensor carpi ulnaris?

A

Lateral epicondyle of humerus; posterior border of ulna via a shared aponeurosis

41
Q

What are the muscles of the deep layer of the posterior compartment of the forearm?

A
  1. Supinator
  2. Extensor indicis
  3. Abductor pollicis longus
  4. Extensor pollicis longus
  5. Extensor pollicis brevis
42
Q

Where is the proximal attachment of the supinator

A

Lateral epicondyle of humerus; radial collateral and anular ligaments; supinator fossa; crest of ulna

43
Q

Where is the proximal attachment of the extensor indicis

A

Posterior surface of distal third of ulna and interosseous membrane

44
Q

Where is the proximal attachment of the abductor pollicis longus

A

Posterior surface of proximal halves of ulna, radius, and interosseous membrane

45
Q

Where is the proximal attachment of the extensor pollicis longus

A

Posterior surface of middle third of ulna and interosseous membrane

46
Q

Where is the proximal attachment of the extensor pollicis brevis?

A

Posterior surface of distal third of radius and interosseous membrane

47
Q

Where is the distal attachment of the supinator?

A

Lateral, posterior and anterior surfaces of proximal third of radius

48
Q

Where is the distal attachment of the extensor indicis?

A

Extensor expansion of 2nd digit

49
Q

Where is the distal attachment of the abductor pollicis longus?

A

Base of 1st metacarpal

50
Q

Where is the distal attachment of the extensor pollicis longus?

A

Dorsal aspect of base of distal phalanx of thumb

51
Q

Where is the distal attachment of the extensor pollicis brevis?

A

Dorsal aspect of base of proximal phalanx of thumb

52
Q

What is the innervation of the supinator?

A

Deep branch of radial nerve (C7, C8)

53
Q

What is the innervation of the extensor indicis?

A

Posterior interosseous nerve (C7, C8), continuation of deep branch of radial nerve

54
Q

What is the innervation of the extensor pollicis longus?

A

Posterior interosseous nerve (C7, C8), continuation of deep branch of radial nerve

55
Q

What is the innervation of the extensor pollicis brevis?

A

Posterior interosseous nerve (C7, C8), continuation of deep branch of radial nerve

56
Q

What is the innervation of the abductor pollicis longus?

A

Posterior interosseous nerve (C7, C8), continuation of deep branch of radial nerve

57
Q

What are the bones of the carpals?

A
  1. Scaphoid
  2. Lunate
  3. Trapezoid
  4. Trapezium
  5. Triquetrum
  6. Pisiform
  7. Hamate
  8. Capitate
58
Q

What are the different groups of intrinsic muscles of the hand?

A
  1. Thenar muscles
  2. Hypothenar muscles
  3. Short muscles
    - Lumbricals
    - Interossei
59
Q

What are the thenar muscles of the hand?

A
  1. Opponens pollicis
  2. Abductor pollicis brevis
  3. Flexor pollicis brevis
    - Superficial head
    - Deep head
  4. Adductor pollicis
    - Oblique head
    - Transverse head
60
Q

What are the hypothenar muscles of the hand?

A
  1. Abductor digiti minimi
  2. Flexor digiti minimi brevis
  3. Opponens digiti
61
Q

What are the short muscles of the hand?

A
  1. Lumbricals
    - 1st and 2nd
    - 3rd and 4th
  2. Dorsal interossei
  3. Palmar interossei
62
Q

Where is the proximal attachment of the opponens pollicis?

A

Flexor retinaculum and tubercles of scaphoid and trapezium

63
Q

Where is the proximal attachment of the abductor pollicis brevis

A

Flexor retinaculum and tubercles of scaphoid and trapezium

64
Q

Where is the proximal attachment of the superficial head of the flexor pollicis brevis

A

Flexor retinaculum and tubercles of scaphoid and trapezium

65
Q

Where is the proximal attachment of the deep head of the flexor pollicis brevis

A

Flexor retinaculum and tubercles of scaphoid and trapezium

66
Q

Where is the proximal attachment of the oblique head of the adductor pollicis

A

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

67
Q

Where is the proximal attachment of the transverse head of the adductor pollicis

A

Anterior surface of shaft of 3rd metacarpal

68
Q

Where is the proximal attachment of the abductor digiti minimi?

A

Pisiform

69
Q

Where is the proximal attachment of the flexor digiti minimi brevis

A

Hook of hamate and flexor retinaculum

70
Q

Where is the proximal attachment of the opponens digiti?

A

Hook of hamate and flexor retinaculum

71
Q

Where is the proximal attachment of the 1st and 2nd lumbricals?

A

Lateral two tendons of flexor digitorum profundus (as unipennate muscles)

72
Q

Where is the proximal attachment of the 3rd and 4th lumbricals?

A

Medial three tendons of flexor digitorum profundus (as bipennate muscles)

73
Q

Where is the proximal attachment of the dorsal interosse (1st -4th)

A

Adjacent sides of two metacarpals (as bipennate muscles)

74
Q

Where is the proximal attachment of the palmar interossei (1st -3rd)

A

Palmar surfaces of 2nd, 4th and 5th metacarpals (As unipennate muscles)

MJM (31 decks)

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