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Reproductive System
Questions about the organs, cells and hormones associated with sexual reproduction.
1,743 Questions
Can you feel the fertilized egg travelling down the fallopian tubes?
No, you can't. The egg is a cell, it's not big enough for you to feel it.
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How long does an ovum stay alive?
The cycle starts when a follicle grows within one of the ovaries. A follicle is composed of the developing egg cell and the support cells that surround and nourish it. Throughout the first portion of the cycle, a small structure in the brain, the pituitary, releases hormones, mostly FSH. This causes follicles to begin growing. One of the follicles becomes dominant and releases estrogen, a hormone that prepares the lining of the uterus to receive a fertilized egg cell. Meanwhile, the estrogen in the blood stream causes the brain to release a surge of LH. In response to the LH surge, the follicle enlarges rapidly. About 24 to 36 hours after the LH surge, the follicle ruptures and releases the egg cell in a process known as ovulation. The ruptured follicle begins secreting the hormone progesterone, which also helps to prepare the uterine lining for a fertilized egg cell. The large structure on the right is the entrance to the fallopian tube. The smaller, waving structures at its opening are called fimbriae. They're moving a lot because it's their job to sweep the egg cell into the fallopian tube's entrance and toward the uterus. Once the egg cell is within the fallopian tube, one of two things will happen to it: it will either be fertilized by a sperm cell, or fertilization will fail to take place. If the egg cell is NOT fertilized within 12 to 24 hours after its release from the ovary, it will stop developing and will dissolve before reaching the uterus. The absence of a fertilized egg cell gradually causes a woman's body to stop releasing the hormones that would otherwise prepare the uterus for the developing egg cell. In response, the uterus sheds its lining. Menstruation signifies the start of the next menstrual cycle and lasts from 2 to 7 days. If the egg cell DOES become fertilized by a sperm, it will be transported by tiny hair-like cells called cilia to the uterus. There, it lodges in the uterine wall in a process called implantation, and receives nourishment from the uterine lining. Meanwhile, back in the ovary, the remaining cells of the ruptured follicle produce progesterone so that the uterine lining will stay rich in blood vessels, and the fertilized egg cell will survive. As you can see, the hormones, which control the reproductive system, maintain a delicate balance over the life cycle of the egg cell.
What reproductive function ceases during pregnancy?
Menstruation stops as soon as a egg is fertilized and the resulting embryo attaches to the lining of the uterus.
What two factors keep the ovum moving through the fallopian tube toward the uterus?
The fimbriae swells with blood and hits the ovary with a gentle motion in the direction of the uterus and the rhythmic beating of the cilia.
Ovulation and the Menstrual Cycle
Every month, your body goes through normal and natural changes that assist your ovaries in releasing an egg, which may or may not get fertilized during the month. This process is known as the menstrual cycle. Day one of your cycle is the first day of menstruation; this is the first day that you bleed during your period. The length of your cycle can vary every month. To determine your cycle's length, simply count the days from the first day of your period up to, but not including, the first day of your next period. The average woman's menstrual cycle last about 28 days but it is perfectly normal for your cycle to last anywhere from 24 to 34 days.
The typical menstrual cycle begins with your period during which time your low hormone levels signal to your body to begin producing more hormones. Although your egg follicles will begin to develop as many as 20 eggs, only one will mature and be released into your fallopian tube about halfway through your menstrual cycle. The process of your egg follicles releasing the egg is known as ovulation. On average, ovulation occurs 14 days before the start your period. However, it is normal for a woman to ovulate anywhere from 12 to 18 days before menstruation.
This increase in hormones not only helps to develop an egg but also your endometrium (the lining of the uterus), which becomes thicker and more suitable for implantation of a fertilized egg. Your cervical mucus also changes as your cycle progresses, going from dry and thick at the start of your cycle to thin and slippery around the time of ovulation. This thinner cervical mucus will make it easier for sperm to swim towards the fallopian tubes and the released egg.
Once an egg has been released, the sides of the fallopian tube periodically spasm aiding the egg in traveling down the tube towards the uterus. If the egg fails to be fertilized during this time, it will break up once it reaches the uterus. Additionally, since your thickened endometrium is also no longer needed as there is no fertilized egg to implant itself into the lining, the lining will shed over a period of three to eight days. This discharge is what makes up your menstrual flow.
A Woman's Reproductive System
Your reproductive organs are comprised of a vagina, a cervix, a uterus, fallopian tubes and ovaries. All of these organs work together to help you menstruate, conceive and carry a baby to term.
The uterus, located in a woman's abdomen, is a hollow, elastic reproductive organ, where a baby develops during pregnancy.
Vagina: This tube like structure connects your internal reproductive organs with your external genitalia. It ends at the cervix and is the point of entry for the penis during sex as well as the final passageway through which a baby exits when it is born.
Cervix: This part of your reproductive organs is situated between the vagina and uterus. It secretes mucus that can help or obstruct sperm from fertilizing an egg. The cervix is the opening that sperm must pass through in order to get to an egg. A baby must also go through the cervix as it exits the uterus and enters the vagina.
Uterus: Also known as the womb, the uterus is a muscular organ made up of three layers: the peritoneum (outer layer), myometrium (middle layer)and endometrium (inner lining). An egg that has been fertilized will implant itself into the endometrium lining and will continue to develop in the uterus throughout the pregnancy.
Fallopian Tubes: The fallopian tubes extend off the upper sides of the uterus and lead up to the ovaries. They have 20 to 25 finger-like structures on their ends that hover just above the ovaries and work to collect the mature egg when it is released. It is in the fallopian tubes that fertilization of the egg will take place.
Ovaries: Women usually have two ovaries, one on each side of the uterus. Ovaries are the storing house for your egg follicles; every month, one of these egg follicles will mature and release an egg into the fallopian tubes. The ovaries are also responsible for producing estrogen and progesterone, which are vital for proper reproductive function.
Conception and Pregnancy
Once an egg has been released from the ovaries, it will begin to travel down the fallopian tubes towards the uterus. As it advances towards the uterus, it begins to produce an enzyme that helps to attract and guide any sperm that may have been ejaculated into the female reproductive system during sex.
Source(s):Knowlege (;What is the pathway for the egg?
Answer
From the vagina, through cavity of cervix and uterus,then through fallopian tube where the sperm meets the egg in ampulla, a part of fallopian tube.
Answer
Once ejaculated out of the penis, sperm travels up the vagina. It then goes through the cervix, which is the entrance to the uterus. Once inside the uterus, it goes towards the fallopian tubes in search of an egg. If no egg is found, it dies within 48 hours. Only one sperm is needed to fertilise the egg, and the rest die.
What hormone is involved with ovulation?
In unfertilized ovum mainly progesterone (high quality) and low quantity of estrogen is released from the corpus leuteum (remaining part of the roptured follicle in ovary. This increased progesterone prepares the uterus for pregnancy.
If fertilization occur progesterone estrogen and hCG are released.
Name a sex-linked genetic disorder?
Many different disorders are sex-linked. Saying something is sex-linked indicates that the gene causing the disorder can be found on one of the sex chromosomes, certain muscle disorders for example are sex-linked
What is the Study of male reproductive system?
Andrology is the medical study of the male reproductive system. But you will often find it combined into Urology.
How long does a baby elephant stay in their mothers womb?
A calf will stay with its mother for about 10 months before it is weaned and becomes independent.
Is it safe if a dog licks your vagina?
when a dog licks your balls saliva in there tongues gets into the pores of your genitals and causing breakdown of tissues leading to your gentials to falling off
Under the influence of hormone from Anterior Pituitary gland (F.S.H.) few follicles mature from bothovaries. By usually on day 14 of menses one (Occasionally two.) get ruptured releasing ovum into the 'Peritoneal' cavity (under influence of L.H. from anteriorPituitary.) It is trapped by theFimbriatedend ofFallopiantube. There are cilia in it, which propel the ovum towards the 'Uterus'. If it gets fertilized, then it starts dividing by the 'Mitosis' and a ball of cell is formed. Which get embedded in uterus to continue pregnancy. Otherwise it looses it's ability to get fertilized after abut 24 hours and then die and disintegrates, probably in Uterus. (Uterus does not have cilia to propel it any where but gravity may get it to lower end of Uterus or it may remain attached to uterine wall.)
What happens to the other sperm cells?
Well, usually it takes hundreds of sperm to penetrate the outer shell of the egg. They usually battle (I.E. they push and ram each other out of the egg) until there are very few sperm left , at this point the other sperm meets one of three fates. One; they die and are absorbed into the body. Two; they die and are urinated out. Three; if they are lucky there another egg, the sperm can live for up to three days and thus another egg within three days a the first fertilization will mean they get to fertilize it.
What female reproductive structure is functionally homologous to the testes?
The female reproductive organ that is functionally similar to the male testes is the ovaries. They store the female reproductive cells, the eggs. However, unlike the testes, they do not make the reproductive cells.
Which region of the uterine tube captures the ovum?
During ovulation, the ovum is released due to rupture of the Mature or Graafian follicle. The unfertilized ovum is captured by the fimbria of the tuba uterina or oviduct at the infundibulum region.
What happens if the reproductive system malfunctions?
You may not be able to have children if something goes wrong such as the uterus. If the uterus had something wrong with it, it may not be able to hold the baby. It really depends on what part of the female reproductive has something wrong
Can a man be born with all the female reproductive in the sexual organs system?
Yes. This is called ambiguous genitalia. It is a birth defect where the outer genitals do not have the typical appearance of either a boy or a girl. In this case, the outer genitals appear masculine and the inner ones are female.
What part of the body is responsible for making sperm?
The Testicles. They go to the epididymis to mature for a few monthes then through the vas deferens to the different glands then get ejaculated.
Human oocytes mature immediately after the surge of LH which occurs at ovulation. The surge of LH causes maturation of the oocyte which is the completion of the first division of meiosis.
How are the male and female reproductive system alike?
Both systems produce cells called gametes that has half the number of chromosomes as body cells do. One is called a sperm cell and the other is the egg. They both must come together to form a cell called a zygote that will form a new individual.
