TY - BOOK AU - Randa Ali Sofy Kotb AU - Maha Khalid Abdelwahed , AU - Safwat Wadie Gergies , AU - Sameh Helmi Doss , TI - Effect of darkness and illumination on the pineal gland of adult male albino Rat : : Morphological and ultrastructural study / PY - 2012/// CY - Cairo : PB - Randa Ali Sofy Kotb , KW - Adult male albino rat KW - Darkness and illumination KW - Pineal gland N1 - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Anatomy; Issued also as CD N2 - The pineal gland is a neuro-endocrine tissue that secretes melatonin which regulates changes in the functions of the endocrine system as well as the functions of many other systems according to light and dark conditions. The aim of the current work was to study histological and ultrastructural changes of the pineal gland according to dark and light conditions ER -