- May 2, 2026The dorsal nerve of the penis (or clitoris) is the deepest terminal branch of the pudendal nerve, arising in Alcock…
- May 2, 2026The posterior scrotal nerves (in males) and posterior labial nerves (in females) are superficial branches of the perineal nerve supplying…
- May 2, 2026The sacral splanchnic nerves are postganglionic sympathetic fibres arising from the sacral sympathetic ganglia (S2-S4 level sympathetics) and joining the…
- May 2, 2026The accessory obturator nerve is an inconstant nerve arising from the lumbar plexus (L3-L4) that is present in approximately 10-30%…
- May 2, 2026The superior hypogastric plexus is a flat network of sympathetic and visceral afferent fibres lying in the retroperitoneum anterior to…
- May 2, 2026The sacral plexus is formed on the anterior surface of the piriformis muscle in the greater sciatic foramen by the…
- May 2, 2026The inferior hypogastric plexus is the principal autonomic plexus of the pelvis, formed bilaterally by the superior hypogastric plexus descending…
- May 2, 2026The pelvic splanchnic nerves (nervi erigentes) are preganglionic parasympathetic fibres arising from the ventral rami of S2, S3, and S4.…
- May 2, 2026The nerve to obturator internus arises from the sacral plexus, typically from the ventral rami of L5, S1, and S2.…
- May 2, 2026The nerve to piriformis arises from the dorsal divisions of the S1 and S2 ventral rami of the sacral plexus.…