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Gross Anatomy Exam 3 > Nerves of Pelvic Limb > Flashcards

Nerves of Pelvic Limb Flashcards

1
Q

L4 is called?

A

Lateral cutaneous femoral

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2
Q

Lateral cutaneous femoral n. runs with?

A

Deep circumflex iliac a. and v.

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3
Q

Lateral cutaneous femoral n. innervates?

A
  1. Skin over lateral thigh

2. Stifle joint

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4
Q

Genitofemoral n. comes from?

A

L3 and L4

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5
Q

Genitofemoral n. cross the surface of?

A

External iliac a.

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6
Q

Genitofemoral n. course

A

Passes through inguinal canal with external pudendal a. and v.

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7
Q

Genitofemoral n. innervates?

A

Skin over medial thigh

Male: prepuce and scrotum

Female: inguinal mammary glands, skin surround vulva

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8
Q

Test side for genitofemoral n.

A

Femoral triangle

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9
Q

Action of quadriceps femoris m. on stifle joint?

A

Extends

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10
Q

Stifle joint aka?

A

Genual joint

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11
Q

Femoral n. formed by?

A

L4-L6

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12
Q

Femoral n. passes through?

A

Iliopsoas m.

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13
Q

Saphenous n. branches off of?

A

Femoral n.

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14
Q

Femoral n. innervates?

A
  1. Quadriceps femoris

2. Iliopsoas

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15
Q

Femoral n. causes what action?

A

Extends stifle joint

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16
Q

Injury to femoral n. causes?

A

Paralysis of quadriceps femoris → incapable of supporting weight

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17
Q

Nerve in femoral trangle

A

Saphaneous n. (passes through vascular lacuna)

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18
Q

Nerve in inguinal canal

A

Genitofemoral n.

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19
Q

Saphenous n. location in medial thigh

A

Cranial to femoral v. and a.

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20
Q

Saphenous n. location distal to stifle

A

Cranial to medial saphenous v. and saphenous a.

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21
Q

Saphenous a. innervates what m.?

A

Sartorius m.

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22
Q

Autonomous zone of saphenous n.

A

Medial aspect of thigh

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23
Q

Medial aspect of tarsus innervated by?

A
  1. Saphenous n.

2. Sciatic n. branches

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24
Q

Adductor mm. of pelvic limb

A
  1. Adductors
  2. Gracilis
  3. Pectineus
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25
Q

Obturator n. causes what action?

A

Adducts pelvic limb

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26
Q

Obturator n. formed by?

A

L4-6

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27
Q

Obturator n. formed in?

A

Iliopsoas m.

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28
Q

How does obturator n. leave pelvic cavity?

A

Through obturator foramen

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29
Q

Which n. can be damaged during calving?

A

Obturator n.

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30
Q

Largest part of lumbosacral plexus

A

Lumbosacral trunk

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31
Q

Lumbosacral trunk formed by?

A

L6, L7, S1, S2

32
Q

Nerves of lumbosacral trunk

A
  1. Cranial gluteal n.
  2. Caudal gluteal n.
  3. Sciatic n.
33
Q

Cranial gluteal n. formed by?

A

L6-S1

34
Q

Cranial gluteal n. leaves pelvic cavity how?

A

Over greater ischiatic notch

35
Q

Cranial gluteal n. accompanies?

A

Cranial gluteal a. and v.

36
Q

Cranial gluteal n. found?

A

Under middle gluteal m.

37
Q

Cranial gluteal n. innervates?

A
  1. Middle gluteal m.
  2. Deep gluteal m.
  3. Tensor fascia lata
38
Q

Caudal gluteal n. formed by?

A

L6-S2

39
Q

Caudal gluteal n. leaves pelvic cavity how?

A

Over greater ischiatic notch

40
Q

Caudal gluteal n. is found by?

A

Caudal gluteal a. and sacrotuberous ligament

41
Q

Caudal gluteal n. mainly inneravtes?

A

Superficial gluteal m.

42
Q

Largest n. in the body

A

Sciatic n.

43
Q

Sciatic n. accompanies?

A

Caudal gluteal n.

44
Q

Sciatic n. at hip joint is covered by?

A

Biceps femoris m.

45
Q

Sciatic n. terminates as?

A
  1. Common fibular n.

2. Tibial n.

46
Q

Sciatic n. innervates what mm.?

A
  1. Biceps femoris
  2. Quadratus femoris
  3. Semitendinosus
  4. Semimembranosus
47
Q

Sciatic n. inneravtes what skin?

A
  1. Lateral distal half of thigh

2. Lateral and caudal crus

48
Q

Flexor mm. of tarsus?

A
  1. Cranial tibial
  2. Fibularis longus
  3. Fibularis brevis
49
Q

Digital extensor mm.?

A
  1. Long digital extensor

2. Lateral digital extensor

50
Q

Flexor mm. of tarsus and digital extensor mm. are innervated by?

A

Common fibular n.

51
Q

Common fibular n. action?

A

Flex tarsus, extend digits

52
Q

Common fibular n. formed by?

A

L6-7

53
Q

Smaller terminal branch of sciatic n.

A

Common fibular n.

54
Q

Lateral cutaneous sural n. given off by?

A

Common fibular n.

55
Q

Common fibular n. passes between

A

Lateral digital extensor and fibularis longus mm.

56
Q

Common fibular n. divides into?

A

Superficial and deep fibular nn.

57
Q

Injured common fibular n. will present as?

A

Dropped foot (knuckled over)

58
Q

Superficial fibular n. runs?

A

Distally along long digitial extensor m.

59
Q

Deep fibular n. runs?

A

Distally with cranial tibial a.

60
Q

Common fibular n. innervates what skin?

A
  1. Dorsolateral distal crus

2. Dorsal metatarsal and digits

61
Q

Extensor m. of tarsus

A
  1. Gastrocnemius

2. SDF

62
Q

Digital flexor mm.

A
  1. SDF

2. DDF

63
Q

Extensor mm. of tarsus and digital flexor mm. are innervated by?

A

Tibial n.

64
Q

Tibial n. has what action?

A

Extend tarsus, flex digits

65
Q

Tibial n. formed by?

A

L6, L7

66
Q

Larger terminal branch of sciatic n.

A

Tibial n.

67
Q

Tibial n. at stifle passes between?

A

Median and lateral heads of gastrocnemius m.

68
Q

Where does tibial n. divide?

A

Just proximal to tarsocrural joint

69
Q

Tibial n. divides into?

A
  1. Medial plantar n.

2. Lateral plantar n.

70
Q

Tibial n. innervates what mm.?

A
  1. Extensor mm. of tarsus
  2. Digital flexor mm.
  3. Interossei mm.
71
Q

Tibial n. innervates what skin?

A

Plantar surface of metatarsus and digits

72
Q

Injury of tibial n. presents as?

A

Dropped hock

73
Q

Caudal cutaneous femoral n. formed by?

A

S1 and S2

74
Q

Caudal cutaneous n. passes?

A

Caudally toward ischiatic tuberosity on medial side of sacrotuberous lig.

75
Q

Caudal cutaneous femoral n. innervates?

A

Skin over caudal thigh

Gross Anatomy Exam 3 (11 decks)

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