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Neurofunctional Anatomy > Lumbar Plexus > Flashcards

Lumbar Plexus Flashcards

1
Q

The lumbar plexus comes from which nerve roots?

A

T12-L5

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2
Q

T12, L1 nerve of lumbar plexus

A

Iliohypogastric Nerve

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3
Q

cutaneous innervation of Iliohypogastric nerve

A

skin above pubis
skin of lateral buttocks

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4
Q

motor innervation of Iliohypogastric n.

A

internal oblique
transverse abdominis

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5
Q

L1 nerve of Lumbar Plexus

A

Ilioinguinal Nerve
(mainly a cutaneous nerve)

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6
Q

Cutaneous innervation of Ilioinguinal n

A

Skin on proximal and medial thigh
Men: upper scrotum and root of penis
Women: Mons pubis and labia majora

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7
Q

Motor innervation of Ilioinguinal n

A

internal obliques
transvers abdominis

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8
Q

L1, L2 (anterior division of Lumbar Plexus)

A

Genitofemoral Nerve

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9
Q

cutaneous innervation of genitofemoral n

A

Men: scrotum
Women: Labia majora and anterior thigh superior to medial inguinal region

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10
Q

motor innervation of Genitofemoral N

A

Men: Cremaster m

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11
Q

L2, L3 nerve of Lumbar Plexus

A

Lateral Femoral Cutaneous N

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12
Q

cutaneous innervation of Lateral Femoral Cutaneous N

A

lateral skin of the thigh
peritoneum (gastrointestinal organs)

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13
Q

L2,L3,L4 anterior division of Lumbar Plexus (through obturator foramen)

A

Obturator Nerve

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14
Q

Obturator Nerve cutaneous innervation

A

Medial Thigh

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15
Q

Obturator Nerve Motor innervation

A

Adductor longus/magnus/brevis
Gracilis
obturator Externus

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16
Q

formed from the dorsal division of the ventral rami of L2, L3, L4

A

Femoral Nerve

17
Q

Cutaneous branches of femoral n

A

-Anterior Femoral Cutaneous Branch

-Saphenous Branch

18
Q

Anterior Femoral Cutaneous Branch innervation

A

anterior and Lateral thigh

19
Q

Saphenous Branch innervation (cut.)

A

(cut)
medial hip jt
medial thigh
medial knee jt
medial calf
medial heel

20
Q

Motor innervation of Femoral N

A

Illiacus
pectineous
Quadratus femoris
vastus medialis/ lateralis/ intermedialus
rectus femoris
sartorius

Neurofunctional Anatomy (3 decks)

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