Please enable JavaScript.
Coggle requires JavaScript to display documents.
Spermatozoa in the Female Tract-Transport, Capacitation and Fertilization …
Spermatozoa in the Female Tract-Transport, Capacitation and Fertilization
Spermatozoa transport
After insemination, spermatozoa are lost from the female reproductive tract by retrograde transport and many are phagocytized
The remaining spermatozoa must transverse the cervix, enter and transverse the uterus and enter the oviduct
-
From an immunologic perspective, spermatozoa are foreign to the female
Because of this, neutrophils actively phagocytize spermatozoa
-
The ability of the female to retain viable spermatozoa may influence the fertility of a given mating
-
The Cervix
The cervix is a major barrier to spermatozoal transport. It also serves as a reservoir of spermatozoa
-
During estrus, the cervix provides mucus, and there are two types
-
-
-
Acrosomal Reactions
The acrosomal reaction is an orderly fusion of the spermatozoal plasma membrane and the outer acrosomal membrane
-
The reaction begins when the plasma membrane of the spermatozoon forms multiple fusion sites with the outer acrosomal membrane
Results in vesiculation, or the formation of many small vesicles
Vesiculation characterizes the acrosome reaction and morphologically distinguishes it from a damaged acrosome
-
-