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Female Reproductive System

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Gabrielle Santos

on 1 February 2013

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Transcript of Female Reproductive System

Parts of the internal genitalia : FEMALE REPRODUCTIVE SYSTEM Functions : -Produces gametes and hormones
-Provides a receptacle in which fertilization may take place
-Nourishes and protects offspring that develop from a fertilized egg to an individual capable of surviving outside the mother’s body 1.Ovary
2.Fallopian tubes
3.Uterus
4.cervix
5.vagina The female reproductive system primarily consists of external and internal genitalia which are specialized in maturation of female gametes, transport of gamete, copulation, fertilization, menstruation and pregnancy Ovaries: - Are small, oval-shaped glands that are located on either side of the uterus
- They produce eggs called ova and release hormones such as estrogen and progesterone
- Contains about 200=400,000 primary oocytes (premature egg cells) Fallopian tubes : - Also called oviduct are narrow tubes that are attached to the upper part of the uterus.
- They serve as tunnels for the ova to travel from the ovaries to the uterus. Uterus: is a hollow, pear-shaped organ that is the home to a developing fetus.
- located between the bladder and rectum
-nourishes and house the fertilized
egg until the unborn child, or offspring, is ready to be delivered. Cervix: - Is the opening of the uterus
- Serves as barrier to protect the uterus against infection Vagina: - Is a fibromuscula canal that joins the cervix (the lower part of uterus) to the outside of the body
- A copulatory organ which receives the penis during sexual intercourse
- A passageway for childbirth. Parts of the external genitalia or vulva 1.Mons Pubis
2.Labia Majora
3.Labia Minora
4.Vestibule
5.Clitoris 6.Hymen
7.Perineum Mons Pubis: - Is a rounded, central (median) elevation over the joint of pubic bone seen at lower end of abdomen, in between the upper ends of the thighs.
- Is primarily made up of fat covered with skin.
-After puberty it is covered with coarse hairs. Labia Majora: - (counterparts of the scrotum in male) are two large outer folds of the vagina covering the labia minora.
- Extends from the mons pubis down to the perineum
- Keep away germs and bacteria from entering the inner parts of the vagina and the urethra. Labia Minora : - These are the inner lips.
- Are a pair of thin, elongated, skin folds (cutaneous folds), present one on each side, on inner aspect of labia majus.
- They converge in front and split to enclose the clitoris, forming a hood over it called prepuce. Vestibule: - Is the area enclosed by the two labia minora.
- It presents anteriorly, a small opening of external urinary meatus and a
larger opening of vagina below it. Clitoris: - Is a small bud like projection made up of erectile tissue that lies at upper end of labia minora and is covered by a hood of skin.
-It corresponds to the penis of males (embryologically). Hymen: - Is a fold of membrane present in the vestibule
- It covers the vaginal opening. Perineum: - Is the small area of skin that lies between the lower ENS of labia an the anus. The Menstrual Cycle The menstrual cycle is the series of changes a woman's body goes through to prepare for a pregnancy Your menstrual cycle is the basics of your reproductive health. Every month your body goes through two main phases to complete the cycle and begin again. These are the Follicular Phase and the Luteal Phase. what happens during follicular phase? -Uterus sheds the lining from the previous cycle.
-Estrogen and progesterone rise after lining is shed.
-Follicular stimulating hormone (FSH) encourages follicular maturation in your ovaries.
-Your uterine lining begins to regrow in anticipation of pregnancy.
-This portion of your menstrual cycle usually lasts an average of 10-14 days. what happens during luteal phase? Ovulation occurs with a surge in the lutenizing hormone (LH).
The egg will travel to the nearest Fallopian tube in hopes of fertilization.
LH helps the corpus luteum to develop from the follicle where the egg was released.
The corpus luteum produces progesterone.
Progesterone and estrogen help the endometrium, or uterine lining, thicken and create a source of blood flow to accept a fertilized egg.
If fertilization does not occur, the corpus luteum withers causing a drop in the estrogen and progesterone, signaling your menses (your period) to begin again.
This phase of the menstrual cycle typically last 14 days. THANK YOU FOR LISTENING!!!!!!
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