Atlas of Human Anatomy by Netter

Mineralocorticoids
Corticosteroids
Secretions affect kidneys to control sodium and water retention
Medulla
Primarily nerve tissue filled with sinusoids and capillaries
Medullary cells derived from neural crest cells: chromaffin cells
Are innervated by preganglionic (presynaptic) sympathetic neurons
Act as postganglionic (postsynaptic) neurons
Secrete adrenaline (epinephrine) and noradrenaline (norepinephrine)
Secretions lead to typical sympathetic response to traumatic stress
Increase heart rate and blood pressure (BP)
Dilate bronchioles
Vascular supply:
Arteries
Superior suprarenal arteries (6-8) from the inferior phrenic artery
Middle suprarenal artery (ies) from the aorta
Inferior suprarenal artery (ies) from the renal artery
Veins
Drainage into a single, large suprarenal vein
Drains into the renal vein on the left and the IVC on the right
Lymphatics
Arise from a plexus deep to the capsule of the gland
Arise from plexus in medulla
Many vessels leave glands draining to lumbar nodes
Innervation
From the celiac plexus and thoracic splanchnic nerves
Fibers are myelinated presynaptic fibers
Synapse on chromaffin cells