Pronunciation: en'do-me'tre-um, -tre-a
Definition: The mucous membrane comprising the inner layer of the uterine wall; it consists of a simple columnar epithelium and a lamina propria that contains simple tubular uterine glands. The structure, thickness, and state of the endometrium undergo marked change with the menstrual cycle. The blastocyst implants into the endometrium making the uterus gravid. If implantation does not occur, the superficial part of the endometrium is shed during the (hemorrhagic) menstrual phase of the uterine cycle.
Synonym(s): tunica mucosa uteriTA
[endo- + G. metra, uterus]
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