Adrenal Gland

The adrenal gland contains two distinct sections: the cortex and medulla. The cortex secretes hormones produced from cholesterol and can be functionally and histologically divided into three zones: zona glomerulosa (mineralocorticoids), zona fasciculata (glucocorticoids) and zona reticularis (sex hormones). The medulla primarily secretes catecholamines, including adrenaline and noradrenaline.