Fallopian tube: The paired long slender tubes that connect the ovaries to the uterus and conduct the eggs to the uterus. Familial: Occurring in or affecting more members of a family than would be expected by chance. Fatty Acid: Any straight-chain monocarboxylic acid, especially those naturally occurring in fats; generally classified as saturated fatty acids, those with no double bonds and unsaturated ones with one or more double bonds. Febrile: Characterized by fever. Female tubal sterilization: Surgical removal of the uterine tube, which makes a woman incapable of reproduction. Fibrin: The insoluble protein formed from fibrinogen by the proteolytic action of thrombin during normal clotting of blood. Fibrin forms the essential portion of the blood clot. Fibroblast: A connective tissue cell that differentiates into all kinds of supporting and binding tissues, for example, collagen producing and bone producing cells of fibrous tissue in the body. Fibronectin: An adhesive glycoprotein: one form circulates in plasma, another is a cell surface protein which mediates cellular adhesive interaction. Fibronectins are important for connective tissue, where they cross-link to collagen, and they are also involved in aggregation of platelets. Fibrosarcoma: Malignant tumor derived from connective tissue fibroblast (resident cell of connective tissue). Fibrosis: The formation of fibrous tissue. Fibrous connective tissue: The connective tissue that binds together and is the support of the various structure of the body. It consists of cells and protein fibers like collagen and other elastic fibrils. Flow cytometry: A procedure to count cells. Fluorescein Angiography: Angiography is a technique of x-ray visualization of blood vessels following introduction of contrast material. Fluorescein is the simplest form of fluorane dyes. It is used as contrast material in angiography. Fluoroscopy: Examination by means of a device used for examining deep structures by means of X-rays. Shadows of X-rays fall on a special screen as they pass through the body placed between the screen and the source of irradiation. Follicle stimulating hormone: One of the gonadotropic hormones secreted by the anterior pituitary, which stimulates the growth and maturation of graafian follicles in the ovary. It stimulates sperm formation in men. Forensic DNA typing: Comparison of DNA molecules for legal purposes. Fragile X syndrome: An X-linked syndrome associated with fragile site on the long arm of the X chromosome at q27-28. This disorder is characterized by mental retardation, enlarged testes and some physical malformation. Francois syndrome: Also known as oculomandibulofacial syndrome characterized by several physical abnormality and congenital cataracts. Free radical trap: Any agent that interacts with free radicals and inactivates them. Free Radical: Unstable molecular fragments produced by bond breakage. Fundus Photography: Photography of the base of the eye. Fungemia: Presence of fungi in the blood stream.