The Effects that the Following Hormones (Testosterone, Estrogen, and Progesterone) Have on the Human Body
Kathy René Harris
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FEMALE REPRODUCTIVE TRACT
The female reproductive tract (Fig. 1-2) consists of two oviducts, the uterus and cervix, the vagina, and the external genitalia. The oviducts (or fallopian tubes), which connect the ovaries to the uterus, can be divided into three segments. The most lateral part is the fimbriated infundibulum, which picks up the mature ovum when it leaves the ovary. Next is the ampulla, which is the site of fertilization; it leads into the isthmus, a relatively short straight tube running into the uterus. In cross-section, the oviduct consists of an outer layer of smooth muscle and an inner mucosal lining. Two types of epithelial cells are evident on the inner surface of the oviduct: ciliated epithelia, which beat toward the uterus, and secretory epithelia. These cells are thought to aid in the transport and nourishment of the ovum and fertilized embryo.
(figure available in print form)
FIGURE 1-2. FEMALE REPRODUCTIVE TRACT
