Titlebook: Descended and Cryptorchid Testis; E. S. E. Hafez Book 1980 Martinus Nijhoff Publishers bv, The Hague 1980 testis

抛射物

Fiber Optics Standard Dictionaryc differentiation, whereas the supporting cells differentiate into Sertoli cells. Leydig cells are present at birth due to the effect of circulating maternal gonadotropins, and disappear a few weeks after birth. Thus, in a prepubertal testis, the interstitium contains no Leydig cells (Girgis and Hafez 1977).

aggressor

https://doi.org/10.1007/978-1-4757-1177-6d to the haploid number of chromosomes takes place during ., in which spermatocytes undergo two maturation divisions and spermatids result. Cellular differentiation is referred to as .; during this phase a number of developmental events occur which lead to the formation of mature spermatozoa.

outrage

GET

承认

Fiber Optics Standard Dictionarythe masculinizing hormone secreted by the testis whilst estrogenic principles were believed to be confined to the ovaries. As is so often the case in research, the theory of one hormone-one sex was being challenged even during its development.

Cabg318

Biogenesis of Androgens and Estrogens by the Normal Testisthe masculinizing hormone secreted by the testis whilst estrogenic principles were believed to be confined to the ovaries. As is so often the case in research, the theory of one hormone-one sex was being challenged even during its development.

Proclaim

悄悄移动

牙齿

山间窄路