Reproductive System Peter Andrew Belford Medical Terminology
Female Reproductive System
Structures Defined• Ovary: Plural Ovaries. Located on each side of the uterus, produce ovum and the female sex hormones progesterone and estrogen..• Fallopian Tubes: Also known as oviducts or uterine tubes. 5.5 inches long, these tubes propel the ovum toward the uterus for implantation.• Uterus: Hollow pear-shaped organ in which a fertilized ovum grows into a fetus.• Cervix: Lower portion of the uterus that opens to the vagina.• Endometrium: Inner wall of the uterus that provides nourishment to a developing baby. Shed every 28 days in menstruation if a fertilized ovum is not implanted.• Vagina: The muscular tube that connects the cervix with the outside of the body. Allows for the passage of menstrual flow, receives the male’s penis and semen and acts as the birth canal in a normal vaginal delivery.
Pregnancy• Embryo: A fertilized egg is classified as an embryo until about the eighth week. During this stage of pregnancy all of the major organs are formed.• Fetus: From the eighth week on the developing baby is called a fetus. During this stage the organs mature to function.• Umbilical Cord: Attaches the fetus to the placenta, surrounded by two membrane sacs: amnion or innermost sac that holds the fluid in which the baby floats. And the chorion or outer sac that also forms part of the placenta.• Placenta: A spongy organ that forms next to the fetus and nourishes it. Also called afterbirth.• Amniotic Fluid: The fluid in which the fetus floats.
Stages of Labor
Male Reproductive System
Structures Defined• Penis: Male sex organ that delivers semen to the female vagina. Serves a dual function in releasing urine from the body and ejaculating semen.• Testes: Produce sperm and testosterone the male sex hormone. The testes are located in the scrotum.• Prostate: Produces an alkaline fluid that negates the pH of the vagina and urethra.