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Pelivis > sacral plexus > Flashcards

sacral plexus Flashcards

1
Q

Superior Gluteal N. Origin

A

L4-L5, S1

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2
Q

Inferior Gluteal N. Origin

A

L5-S2

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3
Q

Sciatic N. Origin

A

L4-S3

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4
Q

Tibial N. Innervates

A

Gastrocnemius, plantaris, soleus, popliteus,
tibialis posterior, FDL, FHL

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5
Q

Superficial peroneal N. Innervates:

A

Peroneus longus and brevis

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6
Q

Deep peroneal N. Innervates:

A

Tibialis anterior, EHL, EDL, Peroneus tertius

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7
Q

Superior gluteal N. Innervates:

A

Gluteus minimus, medius, and TFL

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8
Q

Inferior Gluteal N. Innervates:

A

Gluteus maximus

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9
Q

Nerve to quadratus femoris innervates:

A

Quadratus femoris and gemellus inferior

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10
Q

Nerve to obturator internus innervates

A

Obturator internus and gemellus superior

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11
Q

Sciatic N. Innervates:

A

Biceps femoris, semitendinosus,
semimembranosus, and posterior portion of
adductor magnus

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12
Q

Nerve to the Piriformis Innervates

A

Piriformis

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13
Q

Sacral plexus is Created by spinal N:

A

 Created by spinal nerves L4, L5,
S1-S4

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14
Q

sacral plexus is Housed

A

anterior to sacrum

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15
Q

Primary Branches of the sacral plexus:

A

 Superior gluteal
 Inferior gluteal
 Sciatic and its branches

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16
Q

Secondary Branches of the sacral plexus

A

 Nerve to piriformis
 Nerve to gemellus superior
 Nerve to quadratus femoris

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17
Q

 Enters gluteal region through
Greater Sciatic Foramen (GSF)
superior to piriformis

A

Superior Gluteal Nerve

18
Q

 Innervates: glut med/min; TFL

A

Superior Gluteal Nerve

19
Q

 Enters gluteal region through GSF
inferior to piriformis

A

Inferior Gluteal Nerve

20
Q

 Innervates: glute max

A

Inferior Gluteal Nerve

21
Q

 Largest peripheral nerve

A

Sciatic Nerve

22
Q

Enters gluteal region through GSF
deep to piriformis

A

Sciatic Nerve

23
Q

Prox. To popliteal fossa, splits into
tibial nerve and common peroneal
nerve

A

Sciatic Nerve

24
Q

 Innervates: hamstrings; posterior
fibres of adductor magnus

A

Sciatic Nerve

25
Q

 Travels through popliteal fossa as
lateral neurovascular structure

A

Tibial Nerve

26
Q

 Travels down posterior leg
 Goes posterior to medial malleolus
(Tom, Dick, AN’ Harry)
 Into plantar aspect of foot

A

Tibial Nerve

27
Q

 Innervates: popliteus, gastroc,
soleus, FDL, FHL, tib. post,
plantaris

A

Tibial Nerve

28
Q

 Follows tendon of biceps femoris
 At fibular head, splits into: deep
and superficial peroneal nerves

A

Common Peroneal Nerve

29
Q

 Innervates: non-contractile
structures of the knee

A

Common Peroneal Nerve

30
Q

 Branches off common peroneal
nerve
 Travels down lateral compartment
 Into dorsum of foot

A

Superficial Peroneal
Nerve

31
Q

 Innervates: peroneus longus and
brevis

A

Superficial Peroneal
Nerve

32
Q

 Branches off common peroneal
nerve
 Travels down anterior compartment
 Into dorsum of foot

A

Deep Peroneal Nerve

33
Q

 Innervates: tib ant, EDL, EHL,
peroneus tertius

A

Deep Peroneal Nerve

34
Q

 All travel through GSF deep to
piriformis

A

Secondary Nerves

35
Q

Greater Sciatic Foramen Created by:

A

Created by: greater sciatic notch,
lateral sacrum, sacrospinous
ligament

36
Q

Structures within Greater Sciatic Foramen:

A

piriformis,
superior gluteal N, A, V, inferior
gluteal N, A, V, sciatic nerve, 3
secondary nerves of sacral plexus

37
Q

Popliteal fossa Created by:

A

Created by: biceps femoris, semis,
medial and lateral gastroc heads

38
Q

Popliteal fossa Structures within:

A

Structures within: popliteal artery,
popliteal vein, tibial nerve (from
medial to lateral)

39
Q

Tom, Dick AN’ Harry

A

 Located posterior to medial malleolus

40
Q

 T = Tibialis post.
 D = flexor Digitorum longus
 A = posterior tibial Artery
 N = tibial Nerve
 H = flexor Hallucis longus

A

Tom, Dick AN’ Harry

Pelivis (3 decks)

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