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- piriformis muscle
- pelvic portion of the sympathetic trunk
- lumbosacral trunk from the lumbar plexus which descends into the pelvis medially to the psoas major muscle
- Anterior primary rami of the sacral nerves: first sacral, second sacral, third sacral
Attempt to identify the pelvic splanchnic (parasympathetic) nerves
that arise from the ventral primary rami of S2-S4 and pass to the pelvic viscera. The sacral splanchnic (sympathetic) nerves arise from the sacral ganglia of the pelvic portion of sympathetic trunk.Links and References:
Grant's: 3.57
Netter (1ed.): 387 (2ed.): 383
Rohen/Yokochi: 338, 339