Endometrium: It is the tissue that lines the uterus, or womb the pear-shaped organ that houses a fetus. This mucous membrane thickens in anticipation of a possible pregnancy. If a fertilized egg is implanted, the lining stays in place. If not, it thins and sheds as a menstrual period.

Layers of Endometrium

• Stratum basalis of the basal layer, and stratum functionalis or the functional layer.
• Adjacent to the myometrium, the stratum basalis is present. It does not get shed during menstruation, and further forms stratum functionalis.
• Adjacent to the uterine cavity, the stratum functionalis is present. It gets shed during menstruation.

Role of endometrium in Pregnancy

• The inner lining of the uterus is called the endometrium.
• It is the place where the blastocyst is implanted.
• It supports fetal growth by providing oxygen and nutrients.
• Uterine endometrium (uterine lining) is preparation for implantation, maintenance of pregnancy if implantation occurs, and menstruation in the absence of pregnancy.
• It plays a pivotal role in the reproduction and continuation of our species.
• It protects the embryo and the fetus from microbial invasion during pregnancy.
• At the time of conception occurs, the embryo is implanted in it.

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By Team Learning Mantras