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.
(D) mature Leydig cells. The testes produce testosterone which is required for male sexual development and sperm maturation. Leydig cells are the testosterone producing cells in the testes. The Leydig cells reside between the seminiferous tubules within (what is called) the interstitial spaces.