fertilization?!
Question: how does the woman's body allow for sperm to enter egg during the fertilization?
Answers:
could someone please explain in layman's language!
Other Answers:
Ovum matures and extruded from the ovary. Similarly the spermatozoa also matures before they lie in the seminal fluid. After maturation the ovum by fimbrial action of the fallopian tube is sent inside the outer end of the Fallopian tube. After the ejaculation of the sperm into the Posterior fornix of the vagina, the sperms swims through the cervical canal and the cavity of the uterus, then along the fallopian tube (at the rate of 1" per hour ) and meets the ovum at outer end of the fallopian tube if it is present. Then the fertilisation takes place.
Fertilisation is sometimes defined as implantation or even "the point at which human life begins" and is thus a subject of semantic arguments within the abortion debate. In a statement by the American Association of Pro-Life Obstetricians & Gynecologists (AAPLOG), regarding the controversial morning-after pill, AAPLOG claims:
"[Again,] one must be careful of the terminology. Many now speak of "conception" as that moment when the human blastocyst, the early ball of approximately 100 cells, implants in the mother’s uterus (womb). The time from actual fertilization (sperm and egg unite in the Fallopian Tube) until implantation, a period of about 7-10 days, is ignored, even though no genetic change occurs in the cells during this time period. Many family planning specialists who have supported the terminology change can thus rationalize that the destruction of the human embryo between fertilization and implantation should be labeled "contraception", rather than "early abortion".
Gastrulation is the point in development when the implanted blastocyst developes three germ layers, the endoderm, the exoderm and the mesoderm. It is at this point that the genetic code of the father becomes fully involved in the development of the embryo. Until this point in development, twinning is possible. Additionally, interspecies hybrids which have no chance of development survive until gastrulation. However this stance is not entirely warranted since human developmental biology literature refers to the "conceptus" and the medical literature refers to the "products of conception" as the post-implantation embryo and its surrounding membranes.[1] The term "conception" is not usually used in scientific literature because of its variable definition and connotation.
Source(s):
http://en.wikipedia.org/wiki/Fertilization
Answers: