Each adrenal gland is really two glands in one. It has an outer cortex with three layers and an inner core, the medulla. Tap each layer, from the outside in.
Zona glomerulosa
cross-section · outer → inner
The adrenal glandcortex + medulla
The layers
Cortex memory trick: “Salt, Sugar, Sex. The deeper you go, the sweeter it gets.” (Aldosterone → cortisol → androgens.)
📷 Reference image
A real labeled figure. Compare it with the interactive above.
The Adrenal Gland — OpenStax, CC BY 3.0 (via Wikimedia Commons)
