Lumbas

Question 1

Muscle of the loin

Answer 1

Psoas major

Question 2

Lumbar plexus
From L1
Lateral border of psoas
Skin of lower ant abdominal wall

Answer 2

Iliohypogastric

Question 3

Lumbar plexus
From L1
Pass through inguinal canal
Skin of groin and scrotum or labia maj

Answer 3

Ilioinguinal

Question 4

Lumbar plexus
From L1 and 2
Genital branch and femoral branch
Cremasteric reflex

Answer 4

Genitofemoral

Question 5

Lumbar plexus
From L2 and 3
Lateral border of psoas
Skin of lateral thigh

Answer 5

Lateral femoral cutaneous

Question 6

Lumbar plexus
From L2,3,4
Lateral border of psoas
Msc of ant thigh and skin antero-medial

Answer 6

Femoral nerve

Question 7

Lumbar plexus
From L2,3,4
Medial border of psoas
Medial thigh msc and skin

Answer 7

Obturator