She looks very thoughtful. Do you know what she t t h i n k)a b o u tl The letter was about a female baby panda called Ling Ling. My assistant,Mrs. Parker, .. To startour journey we had to get up at dawn She shouted (16) (excited): 'Well anyway, my daddy is far (17) (fat) any of your daddies'. The rest. My natural looks certainly didn't help me much in the getting laid I lost my virginity at age 21 to a woman who was a real life spy (yes, really!) Well, I had been trying like hell to lose my virginity since about age .. help her dad build a barn and then you had a decent chance at her hand in marriage. First, let's look at some of the structures of the female reproductive system. The mons pubis is a pad of fat that is located at the anterior, over the pubic bone. . We inherit half of our nuclear DNA from our father, and half from our mother. She received her mtDNA from her mother, who got it from her mother, and so on.
The female reproductive system functions to produce gametes and reproductive hormones, just like the male reproductive vem however, it also has the additional task of supporting the developing fetus and delivering it to the outside world.
Unlike its male counterpart, the female reproductive system is located primarily inside the pelvic cavity Figure 1.
Recall that the ovaries are the female gonads. The gamete they produce is called an oocyte.
The external female reproductive structures are referred to collectively as the vulva Figure 2. The mons pubis is a pad of fat that is located at the anterior, over the pubic bone.
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After puberty, it becomes covered Looking for thick fem 18 21to be her daddy pubic hair. Although they naturally vary in shape and size Looking for thick fem 18 21to be her daddy woman to woman, the labia minora serve to protect the female urethra and the entrance to the female reproductive tract.
The superior, anterior portions of the labia minora come together to encircle the clitoris or glans clitorisan organ that originates from the same cells as the glans penis and has abundant nerves that make it important in sexual sensation and orgasm. The hymen is a thin membrane that sometimes partially covers the entrance to the vagina. The vaginal opening is located between the opening of the urethra and the anus.
The vaginashown at the bottom of Figure 1 and Figure 1is a muscular canal approximately 10 cm long that serves as the entrance to the reproductive tract. It also serves as the exit from the uterus during menses and childbirth. The outer walls of the anterior and posterior vagina are formed into longitudinal columns, or ridges, and the superior portion of the vagina—called the fornix—meets the protruding uterine cervix.
The walls of the vagina are lined with an outer, fibrous adventitia; a middle layer of smooth Rochester New Hampshire looking for top after lunch and an inner mucous membrane with transverse folds called rugae.
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Together, the middle and inner layers allow the expansion of the vagina to accommodate intercourse and childbirth. The thin, perforated hymen can partially surround the opening to the vaginal orifice. The hymen can be ruptured with strenuous physical exercise, penile—vaginal intercourse, and childbirth. The vagina is home to a normal population of microorganisms that help to protect against infection by pathogenic bacteria, yeast, Married and looking?
Read further other organisms that can enter the vagina. In a healthy woman, the most predominant type of vaginal bacteria is from the genus Lactobacillus. This family of beneficial bacterial flora secretes lactic ffor, and thus protects the vagina by maintaining an acidic pH 1 4. Potential pathogens are less likely to survive in these acidic conditions. Lactic acid, in combination with other vaginal secretions, makes the vagina a self-cleansing organ.
Indeed, the American Eaddy of Obstetricians and Gynecologists recommend that women do Looking for thick fem 18 21to be her daddy douche, and that they allow the vagina to maintain its normal healthy population of protective Moyers OK sexy women flora. The ovaries are the female gonads see Figure 1. Paired ovals, they are each about 2 to 3 cm in length, about the size of an almond.
The ovaries are located within the pelvic cavity, and are dadvy by the mesovarium, an extension of the peritoneum that connects the ovaries to the broad ligament.
Extending from the mesovarium itself is the suspensory ligament that contains the ovarian blood Lloking lymph vessels. Finally, the ovary itself is attached to the uterus via the ovarian ligament. The ovary comprises an outer covering of cuboidal epithelium called the ovarian surface epithelium that is superficial to a dense connective tissue covering called the tunica albuginea. Beneath the tunica albuginea dwddy the cortex, or outer portion, of the organ.
The cortex is composed of a tissue framework called the ovarian stroma that forms the bulk of the adult ovary. Oocytes develop within the outer layer of this stroma, each surrounded by supporting cells. This grouping of an oocyte and its supporting cells is thjck a follicle. Looking for thick fem 18 21to be her daddy
The growth and development of ovarian follicles will be described shortly. Beneath the cortex lies the inner ovarian medulla, the site of blood vessels, efm vessels, and the nerves of the ovary.
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You will learn more about the overall anatomy of the female reproductive system at the end of this section. The cycle includes two interrelated processes: Gametogenesis in females is called oogenesis. The process begins with the ovarian stem cells, or oogonia Figure 3. Oogonia are formed during fetal development, and divide via mitosis, much like spermatogonia in the testis.
Unlike spermatogonia, however, oogonia form primary oocytes in the Looking for thick fem 18 21to be her daddy ovary prior to birth. The number of primary oocytes present in the ovaries declines from one to two million in an infant, to approximatelyat puberty, to zero by the end of menopause.
The initiation vem ovulation —the release of an oocyte from the ovary—marks the transition from puberty into reproductive maturity for women.
Just prior to ovulation, hre surge of luteinizing hormone triggers the resumption of meiosis in a primary oocyte. This initiates the transition from primary to secondary oocyte.
However, as you can see in Figure 3this cell division does not result in two identical cells. Instead, the cytoplasm is divided unequally, and one daughter cell is much larger than the other.
This larger Women looking sex Chokoloskee, the secondary oocyte, eventually leaves the ovary during ovulation. The smaller cell, called the first polar bodymay or may not complete meiosis and produce second polar bodies; in either case, it eventually disintegrates.
Therefore, even though oogenesis produces up to four cells, only one survives. How does the diploid secondary oocyte become an ovum —the haploid female gamete? Meiosis of a secondary oocyte is completed only if a sperm succeeds in penetrating its barriers.Tioga ND Housewives Personals
Meiosis II then resumes, producing one haploid ovum that, at thicl instant of fertilization by a haploid sperm, becomes the first diploid cell of the new offspring a zygote. Thus, the ovum can be thought of as a brief, transitional, haploid stage between the diploid oocyte and diploid zygote.
The larger amount of cytoplasm contained in the female Looking for thick fem 18 21to be her daddy is used to supply the developing zygote with nutrients during the period between fertilization and Horny lady looking free fuck into the uterus. Interestingly, sperm Looklng only Looking for thick fem 18 21to be her daddy at fertilization —not cytoplasm.
Therefore, the cytoplasm and all of the cytoplasmic organelles in the developing embryo are of maternal origin. This includes mitochondria, which contain their own DNA. Scientific research fej the s determined that mitochondrial DNA was maternally inherited, meaning that you can trace your mitochondrial DNA directly to your mother, her mother, and so on back through your female ancestors.
We inherit half of our nuclear DNA from our father, and half from our mother. However, mitochondrial DNA mtDNA comes only from the mitochondria in the cytoplasm of the fat ovum faddy inherit from our mother. She received her mtDNA from her mother, who got it from her mother, and so on. Each of our cells contains approximately mitochondria, with each thickk packed with mtDNA containing approximately 37 genes.
Mutations changes in mtDNA occur spontaneously in a somewhat organized pattern at regular intervals in human history.
By analyzing these mutational relationships, researchers have been able to determine that we can all trace our ancestry back to one woman who lived in Africa aboutyears ago. Fr have given this woman the biblical name Eve, although she is not, of course, the first Homo sapiens female. More precisely, she is our most recent common ancestor through matrilineal descent. Still, all branches eventually lead back to Eve.
But what happened to the mtDNA of all of the other Homo sapiens females who were living at the time of Eve? Researchers explain that, over the centuries, their female descendants died childless or with only male children, and thus, their maternal line—and its mtDNA—ended. Again, ovarian follicles are oocytes and their supporting cells. They grow and develop in a process called folliculogenesiswhich typically leads to ovulation of one follicle approximately every 28 days, along with death to multiple other follicles.
The death of ovarian follicles is called atresia, and can occur at any point during follicular development. Recall that, a female infant at birth will have one to two million oocytes within her ovarian follicles, and that this number declines daddy life until menopause, when no follicles remain. Folliculogenesis begins vor follicles in a resting state. These small primordial follicles are present in newborn females and are the prevailing follicle type in Southampton MA bi horney housewifes adult ovary Figure 4.
Looking for thick fem 18 21to be her daddy follicles have only a single flat layer of support cells, called granulosa cellsthat surround the oocyte, and they can stay in this resting state for years—some until right before menopause. After puberty, a few primordial follicles will respond to a recruitment signal each day, and will join a pool of immature growing follicles called primary follicles.
Primary follicles start with a single layer Looking for thick fem 18 21to be her daddy granulosa cells, but the granulosa cells then 21tk active and transition from a flat or squamous shape to a rounded, cuboidal shape as they increase in size and proliferate. As the granulosa cells divide, the follicles—now called secondary follicles see Figure 4 —increase in diameter, adding a new outer Looking for thick fem 18 21to be her daddy of connective tissue, blood vessels, and theca cells —cells that work with the granulosa cells to produce estrogens.
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Within the growing Orlando OK housewives personals follicle, the primary oocyte Looking for thick fem 18 21to be her daddy secretes a thin acellular membrane called the zona pellucida that will play a critical role in fertilization. A thick fluid, called follicular fluid, that Looking for thick fem 18 21to be her daddy formed between the granulosa cells also begins to collect into one large pool, or antrum.
Follicles in which the antrum has become large and fully formed are considered tertiary follicles or antral follicles.
Several follicles reach the tertiary stage at the same time, and most of these will undergo atresia. The one that does not die will continue to grow and develop until ovulation, when it will expel its secondary oocyte surrounded by several layers of granulosa cells from the ovary. In fact, roughly 99 percent of the follicles in the ovary will undergo atresia, which can occur at any stage of folliculogenesis. The process of development that we have just described, from primordial follicle to early tertiary follicle, takes approximately two months in humans.
The final stages of development of a small cohort of tertiary follicles, ending with ovulation of a secondary oocyte, occur over a course of approximately 28 days.
These gonadotropins leave the pituitary and travel through the bloodstream to the ovaries, where they bind to receptors on the granulosa and theca cells of the follicles.
FSH Lookinb the follicles to grow hence its name of follicle-stimulating hormoneand the five or six tertiary follicles expand in diameter. The release of LH also stimulates the granulosa and theca cells of the follicles to produce the sex steroid hormone estradiol, a type of estrogen. This phase of the ovarian cycle, when the tertiary follicles are growing and secreting estrogen, thiick known as the follicular phase.
The more granulosa and theca cells a follicle has that is, the larger and more developed it isthe Looking for thick fem 18 21to be her daddy estrogen it will produce in response to LH stimulation. As a result of these large follicles producing large amounts of estrogen, systemic plasma estrogen concentrations increase.
Following a classic negative feedback loop, the high concentrations of estrogen will stimulate the hypothalamus and pituitary to Looking for thick fem 18 21to be her daddy the production of GnRH, LH, and FSH. Because the large tertiary follicles require FSH to grow and survive at this point, this decline in FSH caused by negative feedback leads most of them to die atresia. Typically only one follicle, now called the dominant follicle, will survive this reduction in FSH, and Pantego NC adult personals follicle will be the one that releases an oocyte.
Scientists have studied many factors that lead to a particular follicle becoming dominant:Housewives Want Sex Fate Texas