Until recently, the histology and ultrastructural events of spermatogenesis in reptiles were
relatively unknown. Most of the available morphological information focuses on specific …

Spermatogonial stem cells (SSCs) are the germline stem cells that are essential for the
maintenance of spermatogenesis in the testis. However, it has not been sufficiently …

Apoptosis is a tightly controlled process by which tissues eliminate unwanted cells.
Spontaneous germ cell apoptosis in testis has been broadly investigated in mammals that …

Background Steroidogenesis is an indispensable process that is indirectly associated with
spermatogenesis in the Leydig cell (LC) to utilize the lipid droplets (LDs) that are critical to …

This chapter is intended to cover morphological data on the testis, spermatogenesis,
ultrastructure of spermiogenesis, and the mature spermatozoon in snakes. Though it would …

The annual histological changes of the seminiferous tubules and anterior testicular ducts
were described for the viviparous lizard, Sceloporus grammicus, in two populations …

Spermatogenesis in reptiles is a seasonally dependent physiological process that is not
temporally associated with male mating behavior. Characteristics of seasonal …

We describe seasonal variations of the histology of the seminiferous tubules and efferent
ducts of the tropical, viviparous skink, Mabuya brachypoda, throughout the year. The …

The intent of this chapter is to review the major morphological data on the architecture of the
testis, the histological ontogeny of spermatogenesis, and the ultrastructure of the mature …

Sceloporus bicanthalis is a viviparous lizard that lives at higher elevations in Mexico. Adult
male S. bicanthalis were collected (n= 36) from the Nevado de Toluca, Mexico (elevation is …