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.
Gametogenesis: The development and production of the male and female germ cells required to form a new individual. The male and female germ cells are called gametes.The gametes in human males are produced by the testes, two globe-shaped reproductive organs just below the penis.he reproductive organs in both males and females (testes and ovaries, respectively) begin gametogenesis with a primitive germ cell. A primitive germ cell is a seed cell. Like a seed planted in a garden, a primitive germ cell initiates the process that eventually results in a new being.