(Netter Basic Science) Frank H. Netter - Atlas of Human Anatomy-Elsevier (2018)

Lumbosacral and Coccygeal Plexuses
See also Plate 269
8
Intercostal nerve (T11)
Subcostal nerve (T12)
Iliohypogastric nerve
(T12, L1)
T12
Anterior division
Posterior division
Sympathetic trunk
Ilioinguinal nerve (L1)
To psoas major and
psoas minor muscles
Genitofemoral nerve (L1, 2)
Rami
communicantes
L1
Lateral femoral cutaneous
nerve (L2, 3)
Genital branch (L1) and
Femoral branch (L2)
of genitofemoral nerve
To psoas major and
iliacus muscles
Anterior branches
and
Lateral branches
of subcostal and
iliohypogastric nerves
L2
L3
L4
Lumbar plexus
Lumbosacral trunk
Nerve to quadratus
femoris (and inferior
gemellus) muscles
(L4, 5, S1)
Nerve to obturator
internus (and superior
gemellus) muscles
(L5, S1, 2)
Superior gluteal
nerve (L4, 5, S1)
Nerve to piriformis muscle (S1, 2)
Obturator nerve (L2, 3, 4)
Accessory obturator nerve
(L3, 4) (inconstant)
Inferior gluteal nerve (L5, S1, 2)
Femoral nerve (L2, 3, 4)
Sciatic nerve
Posterior femoral
cutaneous nerve (S1, 2, 3)
Pudendal nerve (S2, 3, 4)
Sciatic
nerve
Common
fibular nerve
(L4, 5, S1, 2)
Tibial nerve
(L4, 5, S1, 2, 3)
Posterior femoral
cutaneous nerve
S1
S2
S5
Co
L5
S3
S4
Sacral plexus
Coccygeal plexus
Pelvic splanchnic
nerves (parasympathetics)
Perforating cutaneous
nerve (S2, 3)
Nerve to levator ani
and coccygeus muscles
(S3, 4)
Perineal branch of
4th sacral nerve
Anococcygeal nerves
Obturator nerve
Inferior anal
(rectal) nerve
Dorsal nerve of penis/clitoris
Perineal nerve and posterior scrotal/posterior labial nerves
Hip and Thigh Plate 487
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