The zona reticularis consists of polyhedral cells arranged in nests or clumps of the linear or round shape. Glucocorticoids are produced in this zone. A column of secretory cells surrounds a mass of capillaries. In the cortex, there is a zone known as the zona fasciculata, which is the middle and thickest zone. A hormone called aldosterone is produced by the adrenal cortex's zona glomerulosa. An outermost zone of the body consists of an arched, thin layer of columnar cells in the zona glomerulosa. The glomerulus is separated into three main zones zona fasciculata, zona glomerulosa, and zona reticularis. In addition to a fibrous capsule, the glands are cushioned by fat that protects them from shocks internally.Īdrenal cortexOf the adrenal glands' glandular epithelium, the adrenal cortex is the more important part. Generally, the glands are pyramid-shaped, but the exact shape may vary from person to person depending on age and health. Adrenal gland Structure In addition to each kidney, two adrenal glands are atop each of them, hence the term suprarenal glands.
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