The Fallopian tubes are the passages wherein the ovum moves from your ovaries to the womb. And, if there is an obstruction (read blockage) in these tubes, it can stop this from happening and rendering you infertile.
Knowing Your Fallopian Tubes
The uterine tubes are also known as Fallopian Tubes or Oviducts. They are a part of the female reproductive system for transporting the Ova (egg cells) from your Ovary to the Womb month-after-month after the ovulation takes place in you.
After the ovulation the egg travels from your ovary to the Fallopian tubes where the sperm cells living in the semen penetrates the egg to fertilize it. The fertilized egg is called zygote that gets pushed to the uterus via the Fallopian tubes for implanting.
The Fallopian tubes get connected to the womb at the utero-tubal intersection where the Fallopian tubes make an opening into the uterine cavity. These slender tubules are filled with cilia, fine hairlike cells, which help in propelling the egg or fertilized egg. From there, they make an extension out and a little around bilaterally towards the ovaries.
For medical purposes, the Fallopian tubes are explained in sections. The ovarian opening, known as infundibulum, is the ending close to the ovary that is linked to the fimbriae. The fimbriae is the edging of tissue in the distal ending towards the opening side of the ovary of the Fallopian tubes.
The fimbriae are wrapped in cilia that appear to be tiny hairs. Before the ovulation, sex hormones stimulate the fimbriae filling it with blood and hit the ovary in a gentle and sweeping motion. When ovulation takes place and the oocyte (ovum) is released, the cilia of the fimbriae push the ovum into the Fallopian tube for moving towards the womb and wait for fertilization.
The ampullary is the segment of lateral tube – central part moving toward the womb or uterus. This is called the main part of your Fallopian tube. Moving inward towards the womb, the tube gets narrowed from here into isthumus. The isthmus is attached to the womb at the utero-tubal intersection.
Hormones that affect the Fallopian tubes cells:
Your Fallopian tubes have two types of cells. Celia cells are found in plenty both in the infundibulum and ampullary.
Androgen hormones enhance the cilia cell generation in the Fallopian tubes. There are also peg cells for producing tubular fluid scattered in between the ciliated cells. This secreted fluid provides nutrition to sperm, ova or oocyte and the zygote or fertilized ova. The secreted liquid also helps in increasing sperm capacitation.
Without this fluid, the sperm may not be able to complete fertilization and the pregnancy may get withheld. While progesterone hormone helps in enhancing the count of peg cells, estrogen hormone helps in increasing the height and amplifies the secretion of your peg cells. Apartment from this, at the fimbriated end, tubal fluid runs against the cilia action.