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X. MRCS: Anatomy > Dermatomes/Myotomes/Reflexes > Flashcards

Dermatomes/Myotomes/Reflexes Flashcards

1
Q

Upper Eyelid and Forehead

A

CNV1 - supratrochlear nerve

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2
Q

Upper eyelid, frontal sinus, forehead, scalp

A

CNV1 - Supraorbital nerve

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3
Q

Lateral part of upper eyelid

A

CNV1 - Lacrimal nerve

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4
Q

Medial parts of both eyelids

A

CNV1 - infratrochlear nerve

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5
Q

Lower part of dorsum of nose and tip of nose

A

CNV1 - external nasal nerve

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6
Q

Lower eyelid, side of nose, upper lip

A

CNV2 - infratrochlear nerve

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7
Q

Upper part of cheek

A

CNV2 - zygomaticofacial nerve

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8
Q

Anterior part of temporal region

A

CNV2 - zygomaticotemporal nerve

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9
Q

Upper 2/3 auricle, temporal region

A

CNV3 - auriculotemporal nerve

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10
Q

Lower part of cheek

A

CNV3 - buccal nerve

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11
Q

Skin over chin

A

CV3 - Submental nerve

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12
Q

C2

A

Occiput

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13
Q

Base of scalp as far as vertex of skull

A

C2 - Greater Occipital nerve

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14
Q

Skin behind auricle

A

C2 - Lesser Occipital nerve

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15
Q

Angle of mandible, skin over parotid, lower part of auricle

A

C2/3 - greater auricular nerve

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16
Q

Anterior neck

A

C2/3 - transverse cervical nerve

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17
Q

Supraclavicular fossa, upper part of chest, clavicle, upper shoulder

A

C3/4 - Supraclavicular nerve

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18
Q

C5

A

Lateral deltoid area, anterior aspect of upper arm

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19
Q

Lateral deltoid

A

C5/6 - Axillary superior lateral cutaneous nerve (branch of axillary)

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20
Q

Lateral upper arm

A

C5/6 - Posterior Antebrachial cutaneous nerve (branch of radial)

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21
Q

C6

A

Anterior-lateral forearm, radial side of hand with thumb and index

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22
Q

Antero-lateral forearm (radial aspect)

A

C5/6 - Lateral cutaneous nerve of forearm (branch of musculocutanous nerve)

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23
Q

Radial aspect of palm

A

Palmar cutaneous branch of median n.

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24
Q

palmar aspect of thumb, index, middle and radial aspect of ring fingers

A

Palmar digital branches of median n.

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25
Q

C7

A

Middle finger

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26
Q

C8

A

Ulnar aspect of ring, little finger

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27
Q

Ulnar aspect of palm of hand (from medial aspect of ring)

A

Palmar cutaneous branch of ulnar n.

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28
Q

Palmar aspect of ulnar half of ring and little finger

A

Palmar digital branches of ulnar n.

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29
Q

Dorsum of hand, ulnar aspect of ring and little finger

A

Dorsal branch of ulnar n.

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30
Q

Dorsal aspect of ulnar half or ring and little finger

A

Dorsal digit nerves

Palmar digital branches of ulnar n.

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31
Q

Dorsum of hand, radial half of ring, middle, index and thumb

A

Superficial branch of radial nerve

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32
Q

T1

A

Ulnar half of forearm

33
Q

Ulnar half of forearm, antecubital fossa, anterior bicep region

A

C8/T1 - Median Antebrachial cutaneous n. (branch of medial cord of brachial plexus)

34
Q

T2

A

Medial aspect of upper arm, upper pectoral and mid scapular area

35
Q

Medial aspect of upper arm

A

T1/2 - Medial brachial cutaneous n. (branch of medial cord)

T1/2 - intercosto-brachial nerve. (branch of intercostal nerves)

36
Q

T4

A

Nipple

37
Q

T6

A

Xiphoid process

38
Q

T10

A

Umbilicus

39
Q

L1

A

Inguinal region

40
Q

Inferior to inguinal ligament, overlying femoral triangle

A

L1 - Femoral branch of genitofemoral

41
Q

Scrotum

A

L1 - Genital branch of genitofemoral

42
Q

Medial aspect of upper thigh

A

L1 - ilioinguinal nerve

43
Q

Skin overlying buttock and lateral buttock

A

L1-3 - Superior cluneal

44
Q

L2

A

Middle and lateral aspects of thigh

45
Q

Anterior and medial aspects of thigh and knee

A

L2/3 - Anterior femoral branches (branches of femoral nerve)

46
Q

Lateral aspect of thigh

A

L2/3 - Lateral femoral cutaneous (branch of lumbar plexus)

47
Q

L3

A

Knee

48
Q

L4

A

Medial aspect of lower leg

49
Q

Anterior and medial aspect of lower leg

A

L3/4 - Saphenous medial crural cutaneous nerve (branches of saphenous, from femoral n.)

50
Q

L5

A

Anterio-lateral aspect of lower leg

51
Q

Anterior lower leg, dorsum of foot

A

L4-S1 - Superficial peroneal nerve (branch of common peroneal)

52
Q

Webspace between great and 2nd toe

A

L4/5 - Deep peroneal nerve (branch of common peroneal)

53
Q

S1

A

Lateral aspect of foot, lateral malleolus, posterior ankle

54
Q

Lateral part of foot, lateral malleolus, posterior ankle and lower leg

A

L4-S1 - Sural n. (anastomosis of medial dural cutaneous n. from tibial n. & sural communicating n. from common peroneal n.)

55
Q

Heel

A

S1/2 - Tibial nerve

56
Q

Plantar surface of foot, medial aspect

A

L4/5 - Medial plantar n. (branch of tibial n.)

57
Q

Plantar surface of foot, lateral surface

A

S1/2 - Lateral plantar nerve (branch of tibial n.)

58
Q

Lateral aspect of knee

A

L4-S2 - Common peroneal lateral dural cutaneous nerve (branch of common peroneal)

59
Q

S2

A

Posterior aspect of knee and thigh

60
Q

Popliteal fossa and posterior thigh

A

Posterior femoral cutaneous n. (branch of sacral plexus)

61
Q

S3

A

Inner/medial buttock

62
Q

Inner/medial buttock

A

S1-3 - Middle cluneal

63
Q

Myotome C5

A

Deltoid - shoulder abduction

64
Q

Myotome C6

A

Elbow flexion, wrist extension

65
Q

Myotome C7

A

Elbow extension

66
Q

Myotome C8

A

Thumb extension and wrist ulnar deviation

67
Q

Myotome T1

A

Finger abduction

68
Q

Myotome L2

A

Hip flexion

69
Q

Myotome L3

A

Knee extension

70
Q

Myotome L4

A

Ankle dorsiflexion

71
Q

Myotome L5

A

Big toe extension

72
Q

Myotome S1

A

Ankle plantar flexion

73
Q

Muscle Stretch Reflex

A

Muscle spindle stretch detected
Action potential fired by Ia afferent fibres
Synapse in spinal cord with alpha-motor-neurones which innervate extramural fibres
Antagonistic muscle is inhibited, agonist muscle contacts
Sensitivity of reflex is regulated by gamma neurones

74
Q

C5/C6 Reflex

A

Biceps

75
Q

C6 Reflex

A

Brachioradialis

76
Q

C6/C7 Reflex

A

Extensor digitorum reflex

77
Q

C6-C8 Reflex

A

Triceps

78
Q

L3/4 reflex

A

Patella

79
Q

S1/2

A

Achilles reflex

X. MRCS: Anatomy (18 decks)

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