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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
Obturator n. causes what action?
Adducts pelvic limb
26
Obturator n. formed by?
L4-6
27
Obturator n. formed in?
Iliopsoas m.
28
How does obturator n. leave pelvic cavity?
Through obturator foramen
29
Which n. can be damaged during calving?
Obturator n.
30
Largest part of lumbosacral plexus
Lumbosacral trunk
31
Lumbosacral trunk formed by?
L6, L7, S1, S2
32
Nerves of lumbosacral trunk
1. Cranial gluteal n. 2. Caudal gluteal n. 3. Sciatic n.
33
Cranial gluteal n. formed by?
L6-S1
34
Cranial gluteal n. leaves pelvic cavity how?
Over greater ischiatic notch
35
Cranial gluteal n. accompanies?
Cranial gluteal a. and v.
36
Cranial gluteal n. found?
Under middle gluteal m.
37
Cranial gluteal n. innervates?
1. Middle gluteal m. 2. Deep gluteal m. 3. Tensor fascia lata
38
Caudal gluteal n. formed by?
L6-S2
39
Caudal gluteal n. leaves pelvic cavity how?
Over greater ischiatic notch
40
Caudal gluteal n. is found by?
Caudal gluteal a. and sacrotuberous ligament
41
Caudal gluteal n. mainly inneravtes?
Superficial gluteal m.
42
Largest n. in the body
Sciatic n.
43
Sciatic n. accompanies?
Caudal gluteal n.
44
Sciatic n. at hip joint is covered by?
Biceps femoris m.
45
Sciatic n. terminates as?
1. Common fibular n. | 2. Tibial n.
46
Sciatic n. innervates what mm.?
1. Biceps femoris 2. Quadratus femoris 3. Semitendinosus 4. Semimembranosus
47
Sciatic n. inneravtes what skin?
1. Lateral distal half of thigh | 2. Lateral and caudal crus
48
Flexor mm. of tarsus?
1. Cranial tibial 2. Fibularis longus 3. Fibularis brevis
49
Digital extensor mm.?
1. Long digital extensor | 2. Lateral digital extensor
50
Flexor mm. of tarsus and digital extensor mm. are innervated by?
Common fibular n.
51
Common fibular n. action?
Flex tarsus, extend digits
52
Common fibular n. formed by?
L6-7
53
Smaller terminal branch of sciatic n.
Common fibular n.
54
Lateral cutaneous sural n. given off by?
Common fibular n.
55
Common fibular n. passes between
Lateral digital extensor and fibularis longus mm.
56
Common fibular n. divides into?
Superficial and deep fibular nn.
57
Injured common fibular n. will present as?
Dropped foot (knuckled over)
58
Superficial fibular n. runs?
Distally along long digitial extensor m.
59
Deep fibular n. runs?
Distally with cranial tibial a.
60
Common fibular n. innervates what skin?
1. Dorsolateral distal crus | 2. Dorsal metatarsal and digits
61
Extensor m. of tarsus
1. Gastrocnemius | 2. SDF
62
Digital flexor mm.
1. SDF | 2. DDF
63
Extensor mm. of tarsus and digital flexor mm. are innervated by?
Tibial n.
64
Tibial n. has what action?
Extend tarsus, flex digits
65
Tibial n. formed by?
L6, L7
66
Larger terminal branch of sciatic n.
Tibial n.
67
Tibial n. at stifle passes between?
Median and lateral heads of gastrocnemius m.
68
Where does tibial n. divide?
Just proximal to tarsocrural joint
69
Tibial n. divides into?
1. Medial plantar n. | 2. Lateral plantar n.
70
Tibial n. innervates what mm.?
1. Extensor mm. of tarsus 2. Digital flexor mm. 3. Interossei mm.
71
Tibial n. innervates what skin?
Plantar surface of metatarsus and digits
72
Injury of tibial n. presents as?
Dropped hock
73
Caudal cutaneous femoral n. formed by?
S1 and S2
74
Caudal cutaneous n. passes?
Caudally toward ischiatic tuberosity on medial side of sacrotuberous lig.
75
Caudal cutaneous femoral n. innervates?
Skin over caudal thigh

Gross Anatomy Exam 3 (11 decks)

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