Suprarenal Plexus, Posterior View

Description

Centered on the posterior abdominal wall, the suprarenal (adrenal) gland sits superior to the kidney and is encircled by the suprarenal plexus, a fine sympathetic nerve mesh converging along the medial and posterior gland surface. Preganglionic fibers can be inferred coursing from the thoracic splanchnic nerves toward the celiac region, with small sympathetic ganglia and connecting branches tracking alongside the suprarenal arteries from the abdominal aorta and draining toward the inferior vena cava on the right. Spatially, the plexus hugs the gland while larger vessels remain more medial, creating the familiar layered relationship of nerves closest to the capsule, then small arterial twigs, then the great vessels. Delicate anatomy. Posterior orientation matters because it matches the surgical corridor during retroperitoneal exposure of the adrenal gland, where dissection proceeds along Gerota fascia and the upper pole of the kidney to reach the gland without violating the peritoneal cavity. Sympathetic fibers traversing the suprarenal plexus contribute to adrenal medullary catecholamine release, a point that becomes concrete in pheochromocytoma, where manipulation can trigger abrupt hypertension if venous and neural control are not respected. This view also clarifies why accessory suprarenal arteries can be tethered by nerve filaments, complicating hemostasis. Ideal for teaching autonomic pathways in an abdominal anatomy or neuroanatomy course, and for endocrine surgery or urology publications discussing posterior adrenalectomy, vascular control of the suprarenal vein, or perioperative hemodynamics in catecholamine-secreting tumors. It also supports atlas figures contrasting sympathetic plexuses around the celiac trunk, renal hilum, and suprarenal pole. Anatomical accuracy verified by SciePro's Medical Advisory Board.