Human female reproductive tract illustrating stages of gamete transport. ( A ) Sperm entering cervical mucus at external os of cervix. The mucus fills the upper half of the inset.
Motility hyperactivation assists sperm in penetrating mucus in the tubes and the cumulus oophorus and zona pellucida of the oocyte, so that they may finally fuse with the oocyte plasma membrane. Knowledge of the biology of sperm transport can inspire improvements in artificial insemination, IVF, the diagnosis of infertility and the development of contraceptives.
Sperm doesn’t travel up the female tract on its own, it relies from the help of mechanical contractions of the female. -female can also influence the motility of sperm by spatial constraints, epithelial cell surface characteristics and the physical properties of tract secretions.
The complex process of sperm transport through the female reproductive tract begins at the time of ejaculation.
of sperm transport can inspire improvements in artificial insemination, IVF, the diagnosis of infertility and the development of contraceptives. Key words: Fallopian tube/spermatozoa/uterine tube/uterus/vagina Introduction Passage of sperm through the female reproductive tract is regu-lated to maximize the chance of fertilization and ensure
Human female reproductive tract illustrating stages of gamete transport. (A) Sperm entering cervical mucus at external os of cervix. The mucus fills the upper half of the inset.
Smooth muscle contractions of the reproductive tract, ciliary beats, fluid currents, and flagellar activity of sperm are primary mechanisms of sperm transport. Sperm become hyperactive in the oviducts in association with capacitation. Most sperm in an inseminate drain from the female reproductive tract within a few minutes or hours after insemination; remaining sperm are removed from the tract by slower …
Several accessory organs and ducts aid the process of sperm maturation and transport the sperm and other seminal components to the penis, which delivers sperm to the female reproductive tract. In this section, we examine each of these different structures, and …
-transport of spermatozoa-primarily the result of elevated tome and motility of the muscularis of the female tract -sperm reservoirs- cervix, utero-tubual junction during the follicular phase- estradiol does? and PGF2alpha and PGE?
Unlike the female reproductive system, most of the male reproductive system is located outside of the body. These external structures include the penis, scrotum, and testicles. The body of the