What is the lining?

The female womb is a place where a child can grow and be nourished during pregnancy. Between puberty and menopause, the womb is preparing a suitable place for a child every month. Every month, if a woman does not become pregnant, she gets rid of the old womb lining and starts doing a new one. This uterine lining is known as endometrium and it is necessary to reproduce.

The womb is not the uterus, is an organ that is hollow in the middle. Its walls are made of muscle, so they can download if necessary. Inside the womb, the surfaces are lined with a specific type of tissue called endometrium. The uterine endometrium or lining is actually composed of three different layers.

Next to the wall is a layer of connective tissue that acts to stick the wall to the next layer, which is the epithelial basalis layer. The layer of epithelial basealis consists of column -shaped cells. At the top of this layer is another known as a layer of functionalis.

During the menstrual cycle, the connective tissue and the Basalis layer remain attached to the womb. Within the menstrualThe cycle changes the functionalis layer. These cells can be discarded from the surface and out of the vagina as menstrual blood at a certain point of the cycle.

It is necessary to replace the uterine cell layer for reproduction. When the sperm gets into the wagon pipes to fertilize eggs, the embryo needs a safe place and good access to nutrients to constantly grow. The source of nutrients is the network of blood vessels that pass through a layer of functionis. This safe place is provided by a fresh new layer of cells on the uterus surface.

Every new batch of cells of functionalis is actually produced by the basalis layer below it. In the middle of the cycle, the layer of functionalis is the worst and hospitable for any embryo. If no embryapotom lands on the line.

If the embryo is secured on a strong and receptive lining, then the body recognizes its presence. The woman begins to create a lining further and becomes a placenta. All directions thatThe uterine lining can be underwent, controlled by estrogen hormones and progesterone, which act as signaling molecules and adapt the response of the womb to specific situations.