Histological study of the adrenal gland in the adult Iraqi local male rabbits

  • N. A. Murad Coll. of Vet. Med. / Univ. of Al-Qadisiyah


The present study was designed to provide basic data about the histological features of the
adrenal gland in the adult Iraqi local male rabbits. The adrenal glands were paired, lie close the
craniomedial border of the kidney, together they weigh about 0.59 g ± 0.38. Each adrenal gland
was covered by a dense connective tissue capsule and consists of two layers: adrenal cortex and
adrenal medulla. The adrenal cortex made up of columnar or polyhedral cells, and can be divided
in to three layers according to arrangement of its cells were: The zona glomerulosa immediately
inside the capsule, consisting of closely packed, arched cords of columnar or pyramidal cells
surrounded by many capillaries. The zona fasciculata (middle zone) it consists of straight
columns of large polyhedral cells. The zona reticuiaris ( innermost zone ) arranged as an irregular
network of anastomosing cords of cells surrounded by sinusoids.The Adrenal medulla is
composed of large, polyhedral cells arranged in cords or groups and supported by a reticular fiber
network. A profuse supply of sinusoidal capillaries intervenes between adjacent cords.