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Sum 2014 - Anat Exam 1 > Exam 1 - Forearm > Flashcards

Exam 1 - Forearm Flashcards

1
Q

What are the Superficial muscles of the Anterior forearm?

A

Pronator teres, Flexor carpi radialis, Palmaris longus, Flexor carpi ulnaris

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2
Q

What are the Intermediate muscles of the Anterior forearm?

A

Flexor digitorum superficialis

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3
Q

What are the Deep muscles of the Anterior forearm?

A

Flexor digitorum profundus, Flexor pollicis longus, Pronator quadratus

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4
Q

What are the origins of Pronator teres?

A

Common flexor tendon and (deep or ulnar head) from medial side of Coronoid process of Ulna

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5
Q

What are the insertions of Pronator teres?

A

Midpoint of the lateral side of the shaft of the Radius.

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6
Q

What are the functions of Pronator teres?

A

Pronates the forearm

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7
Q

What innervates Pronator teres?

A

Median nerve

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8
Q

What supplies blood to Pronator teres?

A

Ulnar artery and Anterior Ulnar Recurrent artery

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9
Q

What are the origins of Flexor carpi radialis?

A

Common flexor tendon from the medial epicondyle of the Humerus

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10
Q

What are the insertions of Flexor carpi radialis?

A

Base of the 2nd and 3rd metacarpals

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11
Q

What are the functions of Flexor carpi radialis?

A

Flexes the wrist; abducts the hand

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12
Q

What innervates the Flexor carpi radialis?

A

median nerve

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13
Q

What supplies blood to the Flexor carpi radialis?

A

UInar artery

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14
Q

What are the origins of Palmaris longus?

A

Common flexor tendon, from the medial epicondyle of the humerus

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15
Q

What are the insertions of Palmaris longus?

A

Palmar aponeurosis

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16
Q

What are the functions of Palmaris longus?

A

Flexes the wrist

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17
Q

What innervates the Palmaris longus?

A

median nerve

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18
Q

What supplies blood to the Palmaris longus?

A

Ulnar artery

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19
Q

What are the origins of Flexor carpi ulnaris?

A

Common flexor tendon and from medial border of Olecranon and upper 2/3 of the Posterior border of the Ulna

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20
Q

What are the insertions of Flexor carpi ulnaris?

A

Pisiform, hook of hamate, and base of 5th metacarpal

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21
Q

What are the functions of Flexor carpi ulnaris?

A

Flexes wrist, adducts hand

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22
Q

What innervates Flexor carpi ulnaris?

A

UInar nerve

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23
Q

What supplies blood to Flexor carpi ulnaris?

A

Ulnar artery

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24
Q

What are the origins of Flexor digitorum superficialis?

A

Humeroulnar head - common flexor tendon

Radial head - middle 1/3 of radius

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25
Q

What are the insertions of Flexor digitorum superficialis?

A

Shafts of the middle phalanges of digits 2-5

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26
Q

What are the functions of Flexor digitorum superficialis?

A

Flexes the metacarpophalangeal and proximal interphalangeal joints.

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27
Q

What innervates the Flexor digitorum superficialis?

A

median nerve

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28
Q

What supplies blood to the Flexor digitorum superficialis?

A

Ulnar artery

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29
Q

What are the origins of Flexor digitorum profundus?

A

Posterior border of the Ulna; Proximal 2/3 of medial border of Ulna and interosseous membrane.

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30
Q

What are the insertions of Flexor digitorum profundus?

A

Base of the Distal Phalanx of digits 2-5

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31
Q

What are the functions of Flexor digitorum profundus?

A

Flexes the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints

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32
Q

What innervates Flexor digitorum profundus?

A

Median nerve (radial 1/2) and Ulnar nerve (ulnar 1/2)

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33
Q

What supplies blood to Flexor digitorum profundus?

A

Ulnar artery and Anterior Interosseous artery

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34
Q

What are the origins of Flexor Pollicis Longus?

A

Anterior surface of Radius and Interosseous membrane

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35
Q

What are the insertions of Flexor Pollicis Longus?

A

Base of the distal phalanx of the thumb

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36
Q

What are the functions of Flexor Pollicis Longus?

A

Flexes the metacarpophalangeal and interphalangeal joints of the thumb

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37
Q

What innervates the Flexor Pollicis Longus?

A

Median nerve

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38
Q

What supplies blood to the Flexor Pollicis Longus?

A

Anterior interosseous artery

39
Q

What are the origins of Pronator Quadratus?

A

Medial side of the Anterior surface of the distal 1/4 of Ulna.

40
Q

What are the insertions of Pronator Quadratus?

A

Anterior surface of the distal 1/4 of the Radius.

41
Q

What are the functions of Pronator Quadratus?

A

Pronates the forearm.

42
Q

What innervates Pronator Quadratus?

A

Median nerve via the Interosseous nerve

43
Q

What supplies blood to Pronator Quadratus?

A

Anterior Interosseous artery

44
Q

What are muscles of the Superficial Posterior forearm?

A

Brachioradialis, Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Extensor Digitorum, Extensor Digiti Minimi, Extensor Carpi Ulnaris

45
Q

What are the origins of Brachioradialis?

A

Upper 2/3 of the Lateral Supracondylar ridge of the Humerus

46
Q

What are the insertions of Brachioradialis?

A

Lateral side of the base of the Styloid process of the Radius

47
Q

What are the functions of Brachioradialis?

A

Flexes the elbow. Assists in supination and pronation

48
Q

What innervates the Brachioradialis?

A

Radial nerve

49
Q

What supplies blood to the Brachioradialis?

A

Radial recurrent artery

50
Q

What are the origins for Extensor Carpi Radialis Longus?

A

lower one-third of the lateral supracondylar ridge of the humerus

51
Q

What are the insertions for Extensor Carpi Radialis Longus?

A

dorsum of the second metacarpal bone (base)

52
Q

What are the functions of Extensor Carpi Radialis Longus?

A

extends the wrist; abducts the hand

53
Q

What innervates the Extensor Carpi Radialis Longus?

A

deep radial nerve

54
Q

What supplies blood to the Extensor Carpi Radialis Longus?

55
Q

What are the origins of Extensor Carpi Radialis Brevis?

A

lateral supracondylar ridge of the humerus (common extensor tendon

56
Q

What are the insertions of Extensor Carpi Radialis Brevis?

A

dorsum of the third metacarpal bone (base)

57
Q

What are the functions of Extensor Carpi Radialis Brevis?

A

extends the wrist; abducts the hand

58
Q

What innervates the Extensor Carpi Radialis Brevis?

A

Radial nerve

59
Q

What supplies blood to the Extensor Carpi Radialis Brevis?

A

Radial artery

60
Q

What are the origins of Extensor digitorum?

A

common extensor tendon (lateral epicondyle of the humerus)

61
Q

What are the insertions of Extensor digitorum?

A

extensor expansion of digits 2-5

62
Q

What are the functions of Extensor digitorum?

A

extends the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints of the 2nd-5th digits; extends wrist

63
Q

What innervates Extensor digitorum?

A

deep radial nerve

64
Q

What supplies blood to Extensor digitorum?

A

interosseous recurrent a. and posterior interosseous a.

65
Q

What are the origins of Extensor Digiti Minimi?

A

common extensor tendon (lateral epicondyle of the humerus)

66
Q

What are the insertions of Extensor Digiti Minimi?

A

joins the extensor digitorum tendon to the 5th digit and inserts into the extensor expansion

67
Q

What are the functions of Extensor Digiti Minimi?

A

extends the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints of the 5th digit

68
Q

What innervates the Extensor Digiti Minimi?

A

deep radial nerve

69
Q

What supplies blood to the Extensor Digiti Minimi?

A

Interosseous recurrent artery

70
Q

What are the origins of the Extensor Carpi Ulnaris?

A

common extensor tendon & the middle one-half of the posterior border of the ulna

71
Q

What are the insertions of Extensor Carpi Ulnaris?

A

medial side of the base of the 5th metacarpal

72
Q

What are the functions of Extensor Carpi Ulnaris?

A

extends the wrist; adducts the hand

73
Q

What innervates the Extensor Carpi Ulnaris?

A

deep radial nerve

74
Q

What supplies blood to the Extensor Carpi Ulnaris?

A

Ulnar artery

75
Q

What are the deep muscles of the Posterior forearm?

A

Supinator and Extensor Indicis

76
Q

What are the origins of Supinator?

A

lateral epicondyle of the humerus, supinator crest & fossa of the ulna, radial collateral ligament, annular ligament

77
Q

What are the insertions of Supinator?

A

lateral side of proximal one-third of the radius

78
Q

What are the functions of Supinator?

A

Supinates the forearm

79
Q

What innervates the Supinator?

A

deep radial nerve

80
Q

What supplies blood to the Supinator?

A

Recurrent interosseous artery

81
Q

What are the origins of Extensor Indicis?

A

interosseous membrane and the posterolateral surface of the distal ulna

82
Q

What are the insertions of Extensor Indicis?

A

its tendon joins the tendon of the extensor digitorum to the second digit; both tendons insert into the extensor expansion

83
Q

What are the functions of Extensor Indicis?

A

extends the index finger at the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints

84
Q

What innervates the Extensor Indicis?

A

deep radial nerve

85
Q

What supplies blood to Extensor Indicis?

A

Posterior Interosseous artery

86
Q

What are the main arteries of the forearm?

A

Ulnar and Radial arteries

87
Q

What are the branches of the Ulnar artery?

A

Anterior ulnar recurrent, Posterior ulnar recurrent, Common interosseous - Anterior and Posterior interosseous, Palmar carpal, Dorsal carpal

88
Q

What are the branches of the Radial artery?

A

Radial recurrent, Palmar carpal, Dorsal carpal

89
Q

What is the exception to the Brachioradialis?

A

Its a flexor and not an extensor even though its in the posterior compartment.

90
Q

What motion is the Brachioradialis strongest at?

A

The drinking motion or Tomahawk

91
Q

What is the cutaneous pattern for the median nerve?

A

Palmar cutaneous branch – Arises in the forearm and travels into the hand. It innervates the lateral aspect of the palm. This nerve does not pass through the carpal tunnel, and is spared in carpal tunnel syndrome.
Palmar digital cutaneous branch – Arises in the hand. Innervates the palmar surface and fingertips of the lateral three and half digits.

92
Q

What is the cutaneous pattern for the radial nerve?

A

Lower lateral cutaneous nerve of arm - Innervates the lateral aspect of the upper arm, below the deltoid muscle.
Posterior cutaneous nerve of arm – Innervates the posterior surface of the upper arm.
Posterior cutaneous nerve of forearm – Innervates a strip of skin down the middle of the posterior forearm.
Superficial branch of the radial nerve - Innervates the dorsal surface of the lateral three and half digits, and their associated palm area.

93
Q

What is the cutaneous pattern for the Ulnar nerve?

A

Palmar cutaneous branch: Innervates the skin of the medial half of the palm.
Dorsal cutaneous branch: Innervates the skin of the medial one and a half fingers, and the associated palm area.
The last branch arises in the hand itself:

Superficial branch – Innervates the palmar surface of the medial one and a half fingers.

Sum 2014 - Anat Exam 1 (14 decks)

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