.over 7 years ago

Adrenal Gland

Adrenal glands are paired structures located on the top of the kidneys.  Each adrenal gland has two parts: external adrenal cortex and internal adrenal medulla. Adrenal cortex shows three concentric zones: zone glomerulosa, zona fasciculata, and zona reticularis. Adrenal medulla consists of rounded groups of relatively large and granular cells called chromaffin cells.