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Learn about the functions and structure of the female reproductive system, including organs like ovaries, fallopian tubes, uterus, cervix, and vagina. Explore key aspects such as ovulation, menstruation, and potential reproductive health issues.
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Functions and Structure • Stores female reproductive cells: Ovum or Ova (egg) • Nourishes and protects each fertilized ovum • beginning of pregnancy to birth
Ovaries • The female sex glands that house the ova and produce female sex hormones • Almond shaped/located on each side of lower abdomen • At birth a female has 400,000 immature ova
Female Sex Hormones • Estrogen and Progesterone • Present in the ovaries • At puberty secondary sex characteristics develop • Development of breasts • Increased percentage of adipose tissue
Fallopian Tubes • Pair of muscular tubes which carries the egg to the uterus • 4 inches long and ½ inch in diameter • Fimbriae – (finger like projection) draws the egg into the fallopiantube • How the egg gets to the uterus • Cilia (tiny hair like structures) • Muscular contractions of fallopian tube
Uterus • Muscular pear-shaped organ about the size of your fist • The lining has several layers • Rich supply of capillaries • Estrogen causes lining of the uterus to thicken with blood vessels. • Ovulation causes the rise in estrogen levels.
Fertilization • If occurs: the zygote (fertilized egg) attaches to the wall of the uterus. • The lining of the uterus continues to thicken. • If fertilization does not occur: the egg (ovum) disintegrates and the lining of the uterus breaks apart and passes through the cervix and vagina. (Menstruation)
Cervix • Neck of the uterus • Will open or dilate during delivery
Vagina • Muscular, elastic passageway that extends from the uterus to the outside of the body. • Also called the birth canal • 3½ inches long
Ovulation • The process of releasing one mature ovum each month • Each ovary switches off releasing an ovum each month. • Early teen years • Hormones cause immature ova to mature
Menstruation • Lining of uterus breaks down into blood, tissue, and fluids • Usually lasts about 3-5 days • Menstrual Cycle – time from the beginning of one menstrual period to the onset of the next • lasts 28 days • Is regulated by endocrine hormones
Menstruation Problems • Menstrual Cramps • Abdominal cramps • Light exercise or heating pad may help relieve cramps • Premenstrual Syndrome (PMS) • Several Days to weeks before period • Nervous tension, anxiety, irritability, bloating, weight gain, depression, mood swings, and fatigue – Hormone imbalance • Toxic Shock Syndrome (TSS) • Risk to all women using tampons • Rare but could be fatal • Bacteria, Staphylococcus aureus, that causes an infection • Signs: aching muscles, bloodshot eyes, soar throat, high fever, vomiting, diarrhea, dizziness, fainting and a rash
Infertility • Inability for a woman to become pregnant • Causes: • Blocked Fallopian Tube (leading cause) • Endometriosis – uterine tissue grows outside uterus • Found on Ovaries, fallopian tubes, and abdominal cavity • Pelvic Inflammatory Disease • Infection of fallopian tubes, ovaries, other surrounding areas in pelvis • Usually caused by STI’s
Other Disorders • Ovarian Cysts • Fluid-filled sac on ovary • Small usually dissolve on own • Cancers • Breast • Cervix, uterus and ovaries are common sites • Pap test: cells taken from cervix to detect cervical cancer