Sentence examples for site of fertilization from inspiring English sources

Our study demonstrates that inactivation of Rnase10 results in a reproductive failure consequent to an inability of the KO spermatozoa to traverse the UTJ and gain the site of fertilization, while their fertilizing ability per se is enhanced.

In isthmus a sperm reservoir forms in order to (i) escape reflux and phagocytosis in the uterine lumen and (ii) ensure that sufficient numbers of potentially fertile spermatozoa are present at the site of fertilization when oocytes are released [ 1].

Delivery of sexed sperm to the site of fertilization varies with species.

One of the strategies devised to meet these requirements is the deposition of semen near the site of fertilization in the oviduct.

First, only viable and morphologically normal sperm enter the sperm storage tubules of females [95], [96], and second, morphologically abnormal sperm appear less effective at reaching the infundibulum (the site of fertilization) and penetrating an egg to achieve fertilization [69].

Thus, sperm motility is required to actively negotiate barriers in the female tract (i.e., cervix and utero-tubal junction in mammals), to swim along the oviduct towards the site of fertilization, and to vigorously penetrate the ovum vestments [36].

Following sperm transfer to a hermaphrodite, a C. elegans male's amoeboid sperm must crawl up one of two gonad arms to reach the spermathecae (the sites of fertilization), where they can compete with the accumulated self-sperm for access to oocytes.

The cells, fluid, and egg are directed into the nearby fallopian tube, which serves as a passageway by which the egg reaches the uterus and as a site for fertilization of the released egg by sperm.

Previous studies in vitro bypassed the need for sperm to ascend the female reproductive tract and generally ignored the importance of the fact that the sperm-egg ratio at the site and moment of fertilization in vivo is close to unity (32, 33).

He said that the "male biologists who fretted over [the adaptionist questions] simply assumed that a deeply vaginal site, nearer the region of fertilization, would offer greater selective benefit" due to their Darwinian, summum bonum beliefs about enhanced reproductive success.

Avoidance of intensive operations minimization of intensive site preparation, fertilization, and weed control practices, and reliance on natural process such as self-thinning of seedlings and small saplings.