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With every cycle, a woman’s body prepares for a potential pregnancywhether or not that is the woman’s intention. During the follicular phase of the menstrual cycle, the following events occur:. As a result, they stop growing and die.
The vast majority of the eggs sytem the ovaries steadily die, until they are depleted at menopause. If a woman were to have intercourse during this time, the thick mucus captures the man’s sperm, nourishes it, and helps it to move towards the egg for fertilization. What Happens During the Menstrual Cycle? Two hormones, female reproductive system pdf download stimulating hormone FSH and luteinizing hormone LHare repeoductive from the brain and travel in the blood to the female reproductive system pdf download.
There are four major hormones chemicals that stimulate or regulate the activity of cells or organs involved in the menstrual cycle: As the egg is released a process called ovulationit is captured by finger-like projections on the end of the fallopian tubes fimbriae. This causes the dominant follicle reproxuctive release its egg from the ovary.
Female Reproductive System: Organs, Function, and More
The ovaries are small, oval-shaped glands that are located on either side of the uterus. The hormones stimulate the growth of about femqle to 20 eggs in the ovaries, each in its own “shell,” called a follicle.
Any remaining eggs gradually die out at menopause.
Also during this phase, there is an increase in the amount and thickness of mucus produced by the cervix lower part of the uterus. The rise in estrogen from the dominant follicle triggers a surge in the amount of luteinizing hormone that is produced by the brain. The main female reproductive system pdf download structures of the female reproductive system include:.
Your Guide to the Female Reproductive System
The fertilized egg then moves to the uterus, where it implants into the lining of the uterine wall. The uterus is divided into two parts: A channel through the cervix allows sperm to enter and menstrual blood to exit.
The corpus luteum secretes the hormone progesterone.
The function of the external female female reproductive system pdf download structures the genitals is twofold: The system is designed to ;df the ova to the site of fertilization. The dominant follicle continues to produce estrogen. To enable sperm to enter the body and to protect the internal genital organs from infectious organisms.
If intercourse has taken place and a man’s sperm has fertilized female reproductive system pdf download egg a process called conceptionthe fertilized egg embryo will travel through the fallopian tube to implant in the uterus. The ovulatory phase, or ovulationstarts about 14 days after the follicular phase started.
The uterus is a hollow, pear-shaped organ that is the home to a developing fetus. The ovaries produce eggs and hormones.
The term menstruation refers to the periodic shedding reproduchive the uterine lining. As estrogen levels rise, like a switch, it turns off the production of follicle-stimulating hormone.
This dominant follicle suppresses all of the other follicles in the group. The corpus can easily expand to hold a developing baby. In addition, female reproductive system pdf download female reproductive system produces female sex hormones that maintain the reproductive cycle.
Conceptionthe fertilization of an egg by a sperm, normally reproductivr female reproductive system pdf download the fallopian tubes. The ovulatory phase is the midpoint of the menstrual cycle, with the next menstrual period starting about two weeks later. The next step for the fertilized egg is to implant into the walls of the female reproductive system pdf download, beginning the initial stages of pregnancy.
The vagina is a canal that joins the cervix the lower part of uterus to the outside of the body. The luteal phase of the menstrual cycle begins right after ovulation and involves the following processes:.
The fimbriae sweep the egg into the tube. Once it releases its egg, the empty follicle develops into a new structure called the corpus luteum.
At birth, there are approximately 1 million to 2 million eggs; by the time of puberty, only aboutremain. Not needed to support a pregnancy, the lining of the uterus breaks down and sheds, and the next menstrual period begins. During the follicular phase of female reproductive system pdf download menstrual cycle, the following events occur: As the follicular phase progresses, one follicle in one systsm becomes dominant and continues to mature.
This phase starts on the first day of your period. Progesterone prepares the uterus for a fertilized egg to implant. Conceptionthe fertilization of an egg by a spermnormally occurs in the fallopian tubes. Luteal Phase of fownload Menstrual Cycle The luteal phase of the menstrual cycle begins right after ovulation and involves the following processes: During this phase, the following events occur: During this phase, the following events occur:. The female reproductive system is designed wystem carry female reproductive system pdf download several functions.
If the egg is rwproductive fertilized, it passes through the uterus. This careful balance of re;roductive allows the body to limit the number of follicles that mature.
It produces the female egg cells necessary for reproduction, called the ova or oocytes. The average menstrual cycle takes about 28 days and occurs female reproductive system pdf download phases: It also is known as the birth canal.
Ovulatory Phase of the Menstrual Cycle The ovulatory phase, or ovulationstarts about 14 days after the follicular phase started.