Egypt is by some definitions part of the Middle East, geographically it is a transcontinental country, the bigger part of the country stretches along the Nile in North Africa while the Sinai Peninsula is in Western Asia.
See interstitial cell. The testosterone-secreting cell of the testis which is located in clusters in the interstitium between the seminiferous tubules. Leydig cells are large and have centrally located nuclei, eosinophilic cytoplasm and numerous lipid-filled cytoplasmic vacuoles.Function.ee interstitial cell. The testosterone-secreting cell of the testis which is located in clusters in the interstitium between the seminiferous tubules. Leydig cells are large and have centrally located nuclei, eosinophilic cytoplasm and numerous lipid-filled cytoplasmic vacuoles.
inÂ·terÂ·stiÂ·tial cells. 1. Cells between the seminiferous tubules of the testis that secrete testosterone. Synonym(s): Leydig cells. 2. Cells derived from the theca interna of atretic follicles of the ovary; they resemble luteal cells and are an important source of estrogens.eydig cell adenoma-small benign tumors of the testis that often produce testosterone, causing endocrine symptoms. Synonym(s): interstitial cell tumor of testis. Leydig cells-cells between the seminiferous tubules of the testis that secrete testosterone.