BIO 12D Lecture Notes - Lecture 3: Fallopian Tube, Mesosalpinx, Ampulla
15 May 2020
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The time when a woman is nearing menopause is called perimenopause: estrogen levels begin to drop, and, a woman may experience irregular periods, skip some periods, or have very light periods. The uterine tubes, also called the fallopian tubes or oviducts, extend laterally from both sides of the uterus toward the ovaries. In these tubes, the secondary oocyte is fertilized, and the pre-embryo begins to develop as it travels toward the uterus. Tubes covered and suspended by mesosalpinx specific superior part of broad ligament of uterus. Each uterine tube made of segments: infundibulum free, funnel-shaped, lateral margin of uterine tube, fimbriae numerous individual fingerlike folds. Uterus pear-shaped, thick-walled muscular organ w/in pelvic cavity. Site for implantation: pre-embryo implants into the inner uterine wall and becomes connected to the uterine lining. Supports, protects, and nourishes the developing embryo/fetus: forms a vascular connection with the mother"s uterine wall that later develops into the placenta.
