Neuro

Question 1

Lumbar plexus

Answer 1

Iliohypogastric
Ilioinguinal
Genitofemoral
Lateral femoral cutaneous
Femoral
Obturator

Question 2

Nerve Roots: iliohypogastric

Answer 2

L1 with a branch from T12

Question 3

Nerve roots: ilioinguinal

Answer 3

L1

Question 4

Nerve roots: genitofemoral

Answer 4

L1, L2

Question 5

Nerve roots: lateral femoral cutaneous

Answer 5

L2, L3

Question 6

Nerve roots: femoral

Answer 6

L2, 3, 4

Question 7

Nerve Roots: obturator

Answer 7

L2, 3, 4

Question 8

Iliohypogastric: motor and sensory

Answer 8

Motor: internal oblique and TA
Sensory: superior glute, hypogastric region

Question 9

Meralgia Parasthetica

Answer 9

IT band region burning
Lateral femoral cutaneous nerve
L2-3

Question 10

What nerve block would be performed to block pain following a csection

Answer 10

Iliohypogastric

Question 11

Ilioinguinal: motor and sensory

Answer 11

Motor: upper TA and internal obliques

Sensory: upper medial thigh/groin, clitoris and hood, labia majora, mind pubis, base of penis and scrotum.

Question 12

Ilioinguinal- mechanisms of injury

Answer 12

• hernia or inguinal repair
• postpregnancy
• spermatic cord or round ligament pathology
• pelvic sx-csection
• abdominal sx- appendectomy
• heavy down bearing as with weightlifting
• compression at waist with tight clothing

Question 13

Lateral femoral cutaneous nerve:

Answer 13

L2-3

Runs under inguinal ligament and over sartorius

Question 14

Lateral femoral cutaneous nerve: MOI

Answer 14

Csection 
Pregnancy
Adhesions
Seat belt/tool belt/weight belt
Obesity 
THA anterior approach

Question 15

Femoral Nerve: motor and sensory

Answer 15

Motor: iliopsoas, pectineus, sartorius, quads

Sensory: anterior thigh, medial knee and ankle

Question 16

Sensory branch of the femoral nerve

Answer 16

Saphenous nerve

Question 17

Obturator nerve: motor and sensory

Answer 17

Motor: Obturator externus, adductors, gracilis, pectineus (sometimes)

Sensory: medial thigh and groin

Question 18

Sacral plexus

Answer 18

Sciatic 
Superior gluteal
Inferior gluteal
Posterior cutaneous 
Pudendal

Question 19

Nerve roots: Sciatic nerve

Answer 19

L4-S3

Question 20

Nerve roots: superior gluteal nerve

Answer 20

L4-S1

Question 21

Nerve Roots: inferior gluteal

Answer 21

L5-S2

Question 22

Nerve roots: posterior cutaneous nerve

Answer 22

S1-3

Question 23

Nerve roots: pudendal nerve

Answer 23

S2-4

Question 24

Nerve roots: nerve of Piriformis

Answer 24

L5, S2

Question 25

Nerve roots: nerve of obturator internus

Answer 25

L5, S1 OI and gemelli

Question 26

Nerve roots: nerve of quadratus femoris

Answer 26

L5,S1

Question 27

Superior gluteal nerv: motor

Answer 27

Motor: gluteus medius and minimums, TFL

Question 28

Inferior gluteal nerve: motor

Answer 28

Gluteus Maximus

Question 29

Posterior femoral cutaneous nerve: sensory

Answer 29

Skin of posterior thigh, gluteal sulcus, perineal region

Question 30

Nerve roots: nerve to Levator ani

Answer 30

S3,4

Question 31

SIJ innervation

Answer 31

Posterior joint: L3-S3 Anterior joint: L2-S2 Primary innervation is S1

Question 32

Nerves off of pudendal nerve

Answer 32

Inferior rectal nerve Dorsal nerve to clitoris or penis

Question 33

Innervation of rectum to superior anus

Answer 33

Sympathetic: hypo gastric nerves Parasympathetic: S2-4 Pelvic splanchnic to inferior hypo gastric plexus

Question 34

Innervation of distal anus to EAS

Answer 34

Perineal branch of 4th sacral nerve root and inferior rectal branch of pudendal nerve

Question 35

Bulbocavernosus clitoral reflex

Answer 35

Stoke of clitoral hood caused contraction of PF

Question 36

Anal wink

Answer 36

Stroke lateral to anus cause anal sphincter contraction

Question 37

Cremaster reflex

Answer 37

L1-2 Stroke medial inner thigh, testicular elevation

Question 38

Peristalsis is stimulation by what nerves

Answer 38

Pelvic Splanchnic Nerves

Question 39

Innervation Of TA and internal obliques

Answer 39

Iliohypogastric Nerve