FALLOPIAN TUBEThe anatomic and physiologic connection between the uterus and the ovary which serves to transport the oocyte (egg) and sperm. It is also the site of fertilization and supports and transports the early-stage-embryo towards the endometrial cavity.
FERTILIZATIONUnion of a sperm with an oocyte (egg) to facilitate creation of a genetically unique embryo.
FIBROIDSBenign overgrowth of the muscular tissue of the uterus. Fibroids are typically knotty masses of benign muscle tissue that can distort the shape and function of the uterus. They are typically classified into three categories: sub-mucosal, intramural and serosal. Sub-mucosal fibroids are found in the uterine cavity and impair implantation. They need to be removed in order to conceive. Intramural fibroids are problematic when they become severely enlarged or impinge on the uterine cavity. Sub-serosal fibroids generally are left alone during fertility treatments.
FIMBRIAThe soft and supple finger-like extensions of the fallopian tube that aid in gathering in the oocyte (egg) at ovulation.
FOLLICLEA fluid-filled pocket in the ovary that houses the microscopic egg. Each ovary has many follicles within it. Follicles start out extremely small and then grow larger under the influence of hormones (and the medications that mimic these hormones). Follicles are lined with granulosa cells which produce estrogen and nourish the oocyte (egg). Each follicle contains a single oocyte.
FOLLICLE STIMULATING HORMONE (FSH)A hormone produced by the pituitary gland in the brain that stimulates the ovarian follicles to grow and develop. FSH is measured in the blood at specialized times during the menstrual cycle to help assess ovarian reserve.
FOLLICULAR PHASEThe menstrual cycle is divided up into two main parts- the follicular phase and the luteal phase. The follicular phase refers to the first half of the cycle, from onset of menses to ovulation and lasts approximately 14 days. It is associated with developing follicles that produce estradiol.