Abstract
Rousettus aegyptiacus, gland has two layers: cortex and medulla. Three layers of cortex distributed equally as seen with histological structure. Ultra-structural observations of the glomerulosa cells give mitochondria with vesicular cristae, a few lipid droplets and appear as large vacuoles, these droplets are variable in size, mainly round to ovoid in shape with an irregular boundary containing material of variable electron density and small vesicles of smooth endoplasmic reticulum scattered throughout the cytoplasm
Highlights
As general in all mammals, adrenal gland is composed of two distinct portions: an outer cortex and an inner medulla [15] paired right and left flat adrenal glands located to the craniomedial of the kidneys were observed in porcupine (Hystrixcristata)
Adrenal gland divided into cortex and medulla, the cortex surrounding the medulla in different thickness as same to other species of mammals
In Taphozous longimanus [21] observed some striking differences during estrus and pregnancy; Golgi apparatus is inconspicuous during estrus but well developed during late pregnancy, mitochondria show vesicular cristae during estrus and vesicular and lamellar cristae during pregnancy, moderate to high amounts of tubular profiles of smooth endoplasmic reticulum is seen during estrus
Summary
As general in all mammals, adrenal gland is composed of two distinct portions: an outer cortex and an inner medulla [15] paired right and left flat adrenal glands located to the craniomedial of the kidneys were observed in porcupine (Hystrixcristata). Adrenal medulla formed of chromaffin cells that are large polygonal and arranged either in groups around blood vessels or in branching cords. These cells secrete catecholamines (adrenaline and nor-adrenaline). One pair of adrenal glands was found in the Emballonurid bat, Taphozous longimanus against the lateral kidney, left one was pyramidal, but the right was oval. The present report reveals the anatomy of adrenal glands in Rousettus eagyptiacus
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