W29/L1 Flashcards
From where do the nerves of the lumbar plexus emerge?
Borders of psoas major
Which nerves emerge from the lateral border of psoas major?
Ilioinguinal N
Iliohypogastric N
Lateral cutaneous nerve of thigh
Femoral N
Which nerves emerge onto the anterior surface of psoas major?
Genitofemoral N
Which nerve emerges from the medial border of psoas major?
Obturator
What are the roots of the ilioinguinal N?
L1
What are the roots of the iliohypogastric N?
L1
What are the roots of the lateral cutaneous N of thigh?
L2, 3
What are the roots of the femoral N?
L2, 3, 4
What are the roots of the genitofemoral N?
L1, 2
What are the roots of the obturator N?
L2, 3, 4
The sacral plexus forms on top of which structure?
Piriformis
What’s the course of the femoral nerve?
From lateral border of psoas under inguinal ligament, and then divides.
What muscles does the femoral N supply?
Sartorius
Quadriceps
Pectineus
What’s the sensory distribution of the femoral nerve?
..