Chapter 6 Scenario 4 keep full position

Over the next two weeks, the couple's sexual activity suddenly became very frequent.The indifference of a woman's sexual activity during the fertile period is now swept away.This is the second time since over a year ago that the two are looking forward to intercourse again, and at the same time, the two can fully enjoy their sex act.The man and the woman had sex once on a Saturday night, then twice in a row the next day.The first time was after the two woke up on Sunday morning, and the second time was at three o'clock in the afternoon on Sunday.Half an hour later, the two tried again, but this time the man's penis was able to get an erection, but he tried it intermittently for 10 minutes, and finally had to admit that he couldn't ejaculate this time.For the next few days, there was no contact between the man and woman.On Wednesday night, women go out with their girlfriends as usual.Thursday night is the time for men to meet up with their boyfriends routinely.These two nights, by the time the party-goer comes home and gets under the covers, the spouse is either really asleep or pretending to be.But on Friday night, they had sex again.Then, on Saturday and Sunday, they also made love consecutively.The following week, until a woman's period begins on Saturday morning, is more or less the same as the previous week.During the week from the start of a woman's period to the end of her period, the man and woman did not have any sexual intercourse during the period when she was bleeding.

Men and women who are already in a relationship rarely engage in routine sexual intercourse on a regular basis.From the first chapter to the fourth chapter of this book, the man and woman have had 10 exciting sexual intercourses, and in 9 of them, the man ejaculated inside the woman.However, the interval between these ten sexual intercourses is of different lengths, from the shortest 30 minutes (but equal to no ejaculation) to as long as 7 hours (with ejaculation), and even as long as 7 days. The roles assigned to men in this book are all at a disadvantage.In contrast, the women listed in various scenes in this book know how to use their bodies well, and cleverly outwit or deceive men in every round.In the scenarios outlined in this book, men are perpetually desperate to regain their disadvantage.These scenes may not be exciting, but we can observe some touching behaviors in men.A man ejaculating may not look very respectable, but in fact, during the instant he ejaculates, something amazing is happening.In each routine sexual intercourse, the number of sperm injected into the partner's body by the man is not too much or too little, just enough to keep the sperm storage in the spouse's body "full", or just to replenish the storage.As for whether this kind of quantitative control is conducive to reproductive success?In these scenes, it is necessary for us to continue to observe sperm in order to further understand the male body.We've seen sperm swim into a woman's cervical mucus channel in the previous scene, so where does the sperm go next?

These small numbers of quick-witted sperm that swim into the mucous channels are the advance troops of the army, and they will march forward bravely, all the way to the woman's uterus.Generally speaking, when a woman is not pregnant, her uterus is roughly the same shape and size as a pear.Because the vaginal walls of women are tightly connected, the entire interior of the vagina can be regarded as a sealed state.After the sperm swim into the uterus, they move forward along the uterine wall. They will swim to the top of the uterus, which is the widest part of the pear.In fact, the muscle folds on the uterine wall are constantly producing small fluctuations. After entering the uterus, the sperm will take advantage of this slight movement between the muscles to slide across the uterine wall.There is a narrow and open fallopian tube at both ends of the top of the uterus (from the longitudinal section of the uterus, if the uterus itself is regarded as the head of a bull, the two fallopian tubes are located exactly at the horns of the bull).There are two fallopian tubes, but only one of the fallopian tubes produces an egg during each menstrual cycle.After the sperm swims out of the uterus, it will continue to travel along the fallopian tubes, and then swim a short distance forward, and finally reach the resting area.At this point, the sperm is no longer swimming, it stops all activity and waits for changes to occur.

OK, now let's go back to the mucus channel of the cervix.Another batch of sperm will swim down the diagonal channels in the mucus, and they will swim along with them into the myriad tiny reservoirs on the wall of the cervix.These sperm are also like the sperm that enter the uterus. When they enter the storage warehouse, they will stop moving, try to store energy, and wait for their time.Four or five days later, the sperm are rejuvenated, and they swim again into the cervical mucus channel, and then, like the pioneers that swam into the uterus earlier, they will slide through the mucus channel through the uterine wall and finally reach the resting area in the fallopian tube.

In addition to the above-mentioned batch of sperm, there is another batch of sperm that remains in the mucous channel from beginning to end.They will just wander around in the mucus channel, and eventually either die a natural death, or are wiped out by the deadly special attack team composed of white blood cells.Within minutes of a man ejaculating in a woman, these killer white blood cells travel from the uterine wall to fight off the invading foreign material, called sperm.The white blood cell killer is distributed in the mucus channel, as long as it encounters sperm, no matter whether it is dead or alive, it will immediately swallow and digest it.When the number of these white blood cells is the largest, it may be comparable to the number of sperm, but within 24 hours after ejaculation, except for the necessary number to remove the remaining sperm, the other white blood cells will all leave.Although white blood cells may outnumber sperm at this point, they do not hunt down sperm that have swum into the storage reservoir of the cervix.

Men produce approximately 300 million sperm per ejaculation.Half of them (approximately 150 million sperm) are "refluxed" out of the female body.Of the sperm ejaculated during each ejaculation, only a few hundred sperm make it to the fallopian tubes directly, and about a million sperm swim into the sperm reservoir on the wall of the cervix for storage.However, within the next five days, these spare sperm will also swim into the fallopian tubes one after another.Judging from the results, about 20,000 of the sperm that a man ejaculates each time can swim through the fallopian tubes.And the rest of the sperm, if they are not discharged from the woman's body with the "backflow", these sperm will continue to stay in the cervical mucus channel and turn around in place, and eventually they will be swallowed up by white blood cells, or they will be swallowed by the mucus flow like a glacier. into the vagina.

You might think that since men ejaculate 300 million sperm per ejaculation, only 1 million of them end up in the sperm storage bank, is it too wasteful? But it is not the case.Since the purpose of male ejaculation is to keep the number of sperm in the female body full, the most noteworthy point here is that the amount of sperm stored in the female body will change with the amount of sperm ejaculated by the male.If a man ejaculates 200 million and 400 million sperm respectively, in the former case, the amount of sperm stored in the female body will only be half of that in the latter case. After each ejaculation, the bodies of both sexes employ certain strategies to maintain a path for fresh sperm to enter the fallopian tubes.The validity period of this channel is about five days, and the time when the sperm are most active in it is between one and two days after ejaculation.After that, the amount of sperm in the storage pool on the cervical wall gradually decreases, and the activity energy of sperm also decreases.In order to keep the sperm stock in the woman's body full, men need to replenish the sperm storage bank.As long as a man can keep replenishing his sperm reservoir with fresh sperm, he can keep a path for his sperm to the resting area of ​​the fallopian tubes.Even if the number of sperm ejaculated by a man exceeds the necessary sensitive amount, the excess sperm will be eliminated naturally.The sperm, which is overflowing from the sperm reservoir, first wanders in the cervical mucus, and finally is swept away by the white blood cells in the woman's body.It must be said that too much sperm entering the fallopian tubes poses a danger: because of the chemical substances attached to the head of the sperm, when the egg enters the fallopian tube, these excessive chemicals are likely to kill the egg.But on the other hand, if a man is unable to keep his sperm reservoir full, the number of sperm that can swim into the fallopian tubes may be too low, or even the sperm reservoir may dry up before it is formed.All men therefore face a challenge: in order to keep the necessary amount of sperm in their partner, the man's body must regulate the amount of sperm ejaculated with each ejaculation according to the need.And amazingly, a man's body does seem to be able to regulate the amount of sperm he ejaculates with extreme precision.

The "adjustment" mentioned here, let us first explain it roughly.If a man has not ejaculated in his partner for more than a week, the sperm storage in the partner's body is almost equal to zero, so it is necessary for him to replenish the sperm storage in her body, and he will ejaculate 400 million sperm to replenish her body.Of those 400 million sperm, only 1 million may end up in storage.But if the man had just ejaculated inside his partner three days earlier, he would have ejaculated only 200 million sperm, of which about 500,000 would have filled the half-empty sperm reservoir.According to this ratio, if the man had ejaculated in his spouse 3 hours ago, he would only ejaculate 30 million sperm; Sperm can't come out either.We also introduced in this scene that if a man last ejaculated 30 minutes ago, he may find it difficult to ejaculate twice in a row within 30 minutes.A man's body will clearly tell him that there is no need to ejaculate.His mate's body is already full, and excessive ejaculation will only cause waste.

So far, the couple featured in the previous scenes have had intercourse a total of 10 times over a four-week period.Men have already delivered 3 billion sperm into women.Because of the male body's remarkable ability to precisely regulate the number of sperm replenished into its mate, no matter whether the couple has doubled or halved the number of sexual intercourses, the total number of sperm received by his mate will not change. too much difference. All in all, a man's body will only ejaculate the amount of sperm necessary to maintain the necessary sperm stock in his mate.But how exactly does a man's body regulate the amount of sperm he ejaculates?Before answering this question, let us first understand the structure of male reproductive organs, and the behavior of ejaculation.First, let's say you're a doctor and you're sitting in a chair with a naked male being examined standing in front of you.The male reproductive organs are located exactly at the level of your eyes.Now, please observe his navel, pubic hair, and a pair of testicles contained in the scrotum, as well as the sloping penis in front of the scrotum.Next, please hold his soft penis with your right hand.If he has a foreskin, please turn it back and remove it.The thick hemispherical part at the tip of the penis is called the glans.At the tip of the glans there is a long and narrow slit in the shape of a vertical, where the urethra exits.Males pass through this opening to urinate or ejaculate.

Now, please pay attention to observe the urethra.The urethra runs straight along the back of the penis from the urethral opening, all the way through the male body to the bladder.Next, please look at the top of the pubic hair with your eyes, assuming you can see through this part.It is at this point that the urethra connects to the bladder.Looking a little further down from here, the urethra is connected to the left and right vas deferens, and the two vas deferens are respectively connected to a testicle.In fact, each vas deferens is densely packed with a whole row of sperm.The part where the vas deferens connects to the urethra is covered by a walnut-sized gland, which is the prostate gland, from which semen is produced.

So, where is the entire row of sperm in the vas deferens made?In fact, the man standing in front of you, even when he is standing still, his testicles are still engaged in a lot of activity.The cells in the testicles are constantly dividing, growing at an astonishing rate, and eventually becoming mature sperm.Every time a man's heart beats, more than a thousand fresh sperm are produced.When the mature sperm are ready to be ejaculated, they form a single file in order.Although these sperm have been arranged in the vas deferens, they are still in the testicle, or in other words, they are still on the surface of the testicle.The vas deferens has different names depending on its length and location: the one inside the testicle is called the epitestis, and the part that connects from the testicle to the urethra is called the vas deferens.Roughly speaking, the vas deferens is straight, while the epitestes are curved and twisted into a wonderful spiral. Once the sperm enter the epitestes, they are ready to go.Every time a man ejaculates some sperm, the sperm at the back of the line will be replenished in sequence.The sperm at the front of the line gradually decreases with the male ejaculation. At this time, another batch of mature fresh sperm replenishes from the testicles to the back of the line.It takes about two months for a sperm to join the ranks of sperm sequentially from the deepest part of the testicle.After each sperm enters the epitestis, it will stay in it for about two weeks, and then it will take another 5 days to wait in line for its turn to enter the vas deferens.Occasionally, newborn sperm at the back of the queue may jump ahead of long-awaited sperm, a point we are not going to discuss now. Let us continue to observe the man in front of us to see how he has sexual intercourse and how to release the sperm teams in the two vas deferens.When the man stands in front of you, there is not a single sperm in his urethra.But by this time his two vas deferens were packed with a billion sperm.Although these sperm will eventually enter the urethra separately in sequence, there is no change in the sperm when the man's penis is just erect?There is a round sphincter between the vas deferens and the urethra. Under normal circumstances, this sphincter prevents urine from leaking out of the bladder and also prevents sperm from entering the bladder.Well, next thing, the sperm has entered the man's urethra and he's ready to shoot anytime. Men experience a pleasurable urgency at the base of their penis as sperm enters the urethra.At the same time he will feel that he is about to ejaculate.As for when is the last moment of ejaculation?At this point, men can consciously control it.When the last moment came, the man was finally about to ejaculate.At this time, semen is injected from the prostate into the urethra.Immediately afterwards, the muscles begin to contract, and the mixture of semen and sperm is rushed from the urethra into the woman's body in one breath. Having said that, I believe everyone already understands how the male body controls the number of sperm ejaculated.Men use muscle movement and strength adjustments to determine how much sperm to put into the urethra from the vas deferens.Even after sperm enters the urethra, men are still free to adjust as they please.Usually, a man will release sperm in 3 to 8 times during ejaculation, and he can still decide how many sperm to ejaculate according to his own will.The sperm and semen remaining in the urethra will be washed away by the urine when the man urinates next time. When it comes to regulating ejaculate sperm count, men keep records of when they last had intercourse with their mates.Clearly, there is some necessary interconnection between the male brain and the musculature of the reproductive organs.Because of this connection between the brain and reproductive organs, it's easy to understand why a man's body can replenish the sperm count in his mate with such precision.Of course, it is impossible for men to consciously regulate the number of sperm they ejaculate.A man is jerking back and forth during coitus, or when sperm is about to enter the urethra, he cannot ask himself first, "Should I ejaculate 100 million sperm this time, or 400 million sperm?" His subconscious mind and his body make all the decisions for him.When sperm is about to enter the urethra, or when a man is about to ejaculate, every part of his body responds to cooperate.Thus the man's consciousness can be unrestricted, so that he can concentrate all his energy on the back and forth of the penis, and on the body of the female partner.