Lesson3

Question 1

7 Nerves in Lumbar Plexus

Answer 1

• Iliohypogastric
• Ilioinguinal
• Genitofemoral
• Lateral Cutaneous of Thigh
• Femoral
• Obturator

Question 2

Iliohypogastric O/D

Answer 2

O: L1
D:
mm: anterior/lateral abs
skin: ant, lat abs, glutes

Question 3

Ilioinguinal O/D

Answer 3

O: L1
D: Skin over superior/medial thigh, genitals

Question 4

Genitofemoral O/D

Answer 4

O: L1-L2
D:
mm: cremaster
skin: genitals, sup/medial thigh

Question 5

Lateral Cutaneous Nerve of thigh O/D

Answer 5

O: L2-L3
D:
skin: lateral thigh

Question 6

Femoral O/D

Answer 6

O: L2-L4
D:
mm: Anterior thigh
skin: ant/med thigh, med ankle, leg, foot

Question 7

Obturator O/D

Answer 7

O: L2-L4
D:
mm: adductors
skin: adductors

Question 8

Femoral Nerve Injury causes

Answer 8

1. Stab/gunshot
2. Can’t extend knee, trouble w/ hip flexion
3. wasting of quads
4. No sensation over ant/medial thigh

Question 9

Injury to Obturator Nerve causes

Answer 9

1. Paralysis of adductors
2. No sensation over medial thigh
3. Occurs by pressure on nerve by fetal head during pregnancy

Question 10

Meraglia Parasthetica

Answer 10

• Lateral Femoral Cutaneous Nerve entrapment
• Occurs near ASIS as nerve passes under inguinal ligament
• Sensory alteration/burning pain on lateral thigh
• Causes: trauma, during baby delivery in stirrups, tight clothing, complication from surgery (hernia)

Question 11

15 Nerves of the Sacral Plexus

Answer 11

1. Superior Gluteal
2. Inferior Gluteal
3. Piriformis
4. Nerve to quadratus femoris + inf gamellus
5. Nerve to obturator internus + sup gamellus
6. Perforating cutaneous
7. Posterior cutaneous of thigh
8. Sciatic
9. Tibial
10. Medial plantal
11. lateral plantar
12. Common fibular
13. Deep fibular
14. Superficial fibular
15. Pudendal

Question 12

Sacral Plexus Runs from

Answer 12

L4-S4

Question 13

Superior Gluteal O/D

Answer 13

O: L4-S1
D:
mm: glute med, min, TFL

Question 14

Inferior Gluteal O/D

Answer 14

O: L5-S2
D:
mm: Glute max

Question 15

Nerve to Piriformis O/D

Answer 15

O: S1-S2
D:
mm: Piriformis

Question 16

Nerve to Quadrator Femoris + Inf Gamellus O/D

Answer 16

O: L4-S1
D:
mm: Quadrator Femoris + Inf Gamellus

Question 17

Nerve to Obturator Infernus + Superior Gamellus O/D

Answer 17

O: L5-S2
D:
mm: Obturator Infernus + Superior Gamellus

Question 18

Nerve to Perforating Cutaneous O/D

Answer 18

O: S2-S3
D:
Skin: Inf/mid buttock

Question 19

Posterior Cutaneous of Thigh O/D

Answer 19

O: S1-S3
D:
Skin: Post thigh, inf glutes, sup calves

Question 20

Sciatic Nerve O/D

Answer 20

O: L4-S3
D:
mm: hamstrings/adductor magnus

Question 21

Tibial O/D

Answer 21

O: L4-S3
D:
mm: Popliteus, post compartment

Question 22

Medial Plantar O/D

Answer 22

O: L4-S3
D:
mm: AbH, FDB, FHB

Question 23

Lateral Plantar O/D

Answer 23

O: L4-S3
D:
mm: all other foot mm
Skin: medial/lateral plantar surface

Question 24

Common Fibular O

Answer 24

O: L4-S2

Question 25

Superficial Fibular O/D

Answer 25

O: L4-S2 D: mm: fib long/brevis skin: lat leg, ant leg, dorsum foot

Question 26

Deep Fibular O/D

Answer 26

O: L4-S2 D: mm: ant compartment, EDB, EHB Skin: Dorsal digits 1,2

Question 27

Pudendal O/D

Answer 27

O: S2-S4 D: mm: Pelvic floor Skin: genitals