Boys start producing sperm in their semen once they have started puberty. It may take a while for the production to begin but it will have by the time puberty has ended.
At first masturbation will produce a small amount of clear watery sticky fluid on ejaculation, this will be the Semen. As he gets further into puberty this will change into a thicker whiter/creamy fluid which the sperm is transported in.
Boys bodies do not begin to produce sperm until they have begun puberty. The age at which boys begin puberty is very variable and differs from one boy to another. Any age between around 9 years of age and 16 is considered to be within the normal range for puberty to start although on average most boys begin puberty around 11 or 12 years of age. They generally begin to produce sperm around a year after puberty has begun.
Immature germ cells (spermatogonia) are dormant in the boys testes from fetal life. They do not divide and mature into sperm until Puberty has begun. Sperm will not be able to be ejaculated through masturbation until a boy is underway into puberty.
A man has a penis, a women has a vagina.
Also Men have a thicker epidermis ( The top layer of skin)
They also have more collagen in their skin ( What makes your skin plump)
The male is usually more muscular and often taller.
1) Men are unable to conceive and give birth to offspring.
2) Men's reproductive organs are external (located outside the body), while female reproductive organs are internal (inside the body).
3) Men have "Adams apples" (laryngeal prominence), a lump located at the front of their necks. Yes, I realize I gave three answers, but they're the most obvious differences.
A male has a Y chromosome while female does not. (genes for height are located there).
Some ideas for protecting the female reproductive system:Use strategies to lower the risk of STDs. For instance, have no more than one partner, use condoms, get an HPV vaccine to prevent cancer and genital warts, get tested regularly, and make sure your partner is tested before you exchange fluids.Men can protect their testicles during sports by using appropriate protection.Avoid using douches and fragranced "feminine deodorants," as these increase the risk of infection.Maintain a healthy weight to lower the risk of endometrial cancer.Get regular screening for cervical cancer, starting at age 21.Ensure adequate spacing of pregnancies; the lowest risk is for at least two years and less than five years between children.See your health care provider promptly for any unusual symptoms in the genital area, including painful urination, unusual discharge, pain with bowel movements, or painful sex.Avoid smoking, which is associated with reduced fertility and increased risk of cervical cancer, Protect the skin around the genitals by being careful about hair removal. Frequent cuts or nicks from shaving can present an opportunity for infection to set in, and can spread warts or molluscum infections already present.
Males have two different sex chromosomes, X and Y. Each sperm only carries half the amount of chromosomes of normal (non-sex) cells. This is so that when sperm and egg combine, the new organism has the correct number of chromosomes, half from each parent.
So each sperm will carry 22 autosomes (non-sex chromosomes) and either an X or Y chromosome - because this is half the male's genetic information.
A tube that is open or free of obstruction.
Every single site I've looked (including the Britannica Encyclopedia) calls it an "egg sac".
Gonads are the general term for both male and female sex glands; the male gonads are testes, and the female gonads are ovaries.
Just as much as you do.!
It's called ovulation: the egg is released when the cavity surrounding it (the follicle) breaks open in response to a hormonal signal and it usually occurs around 14 days before the first day of the woman's next menstrual cycle.
In order to ensure the continuity and survival of a species, organisms must reproduce.
You cannot become pregnant but you could carry a baby.
There will be the formation of dissimilar offspring during sexual reproduction.
This will depends on what kind of personality he have. Most men can not handle bad news or being rejected by someone he loves. But in scale of 1- 10, I think only 25% of men do feel insecure.
Gametogenesis is a process by which diploid or haploid precursor cells undergo cell division and differentiation to form mature haploid gametes. Depending on the biological life cycle of the organism, gametogenesis occurs by meiotic division of diploid gametocytes into various gametes or by mitotic division of haploid gametogenous cells. For example, plants produce gametes through mitosis in gametophytes. The gametophytes grow from haploid spores after sporic meiosis. The existence of a multicellular, haploid phase in the life cycle between meiosis and gametogenesis is also referred to as alternation of generations. don't be confused . . ^_^ It occurs in the gonads. In most animals the ovaries produce the female gametes (ova) and the testicles the male gametes (sperm). it is where the female sex cells are made
The process by which haploid ( or diploid in some organisms ) precursor gametes become mature gametes.
As Dr. Sam rightfully states above aka NPD.
However the question asked about N-ism and maybe the question was specifically about NPD but just in case....
This to me hs been one of the minor confusions in my studies of N-ism.
In the DSM bible (Diagnostic Scholastic Manual of Psychiatry 1994) under the umbrella of Narcissism are four personality disorders.
in their pathological manifestation
Anti Social Personality Disorder (APD or ASPD) affects 3% of the population: 75% male
Narcissistic PD circa 1% :75% male
Histrionic PD <1% 75% female
Borderline PD <1% : 75% female
Everyone has negative N-traits. In fact one of the greatest values in understanding N-ism is seeing it in yourself and loathing N-ism so much you are more attentive to improving your own being and annuling your own negative N-traits.
So N-ism is a scale from healthy to pathological. One of my concerns if fully 5% of the adult population are path NNN then what percent are strongly disposed.
People with strong ngative N-traits are also a real pain in the ass and best avoided if you can. So what do you say? for every path. N there must be 3 or 4 strongly disposed so now we are talking another 15-20% of the population.
N-ism is the social disease destroying the fabric of society
Armageddon is not a physical clash between the forces of good and evil but is a spiritual war between the forces of compassion and N-ism!
About 0.7-1% of the population suffers from NPD. Between 50-75% of all narcissists are male. There are no statistics regarding the prevalence of this disorder in other demographic groups (age, ethnicity, etc.)
The spotted hyena's reproductive system is extremely unusual in that that externally there seems to be no difference between males and females. Specifically, a female hyena's genitals resemble a male's to the point that unless a hyena is suckling cubs (and is therefore female), it is not possible for the untrained observer to tell the two sexes apart. More specifically:
While there are visual cues wildlife biologists working in the field use to sex hyenas-for example, the female's clitoris is thick and terminates in a rounded and blunt tip while the male's penis is thin and terminates in a sharp and wedge-shaped tip-experience and training are required to employ them with any degree of success, and even the most experienced researchers will make an incorrect call at times.
The female hyena's mimicry of male sexual organs has severe consequences for the sexual and reproductive life of the spotted hyena:
Why hyenas have such a strange and hazardous reproductive system is unknown. It is thought that some it conferred some evolutionary advantage to the species, but what that advantage is or might have been is currently a subject of debate among scholars studying the spotted hyena.
It sounds like you could have a UTI or yeast infection. Both are very common in pregnancy. Just call your Dr and tell them what is happening.
Humans have 23 pairs of chromosomes; 46 chromosomes in all, 23 from the father and 23 from the mother.
A normal human being has 23 chromosomes from each parent, giving them 23 pairs or 46 in total. It is called Haploid.
Womens' hair styles are a matter of personal preference. This includes pubic hair styling. Some women trim their pubic hair, while others let things grow naturally. And just as some men shave their heads completely, some women shave or wax their pubic hair to remove it completely. It's a personal choice. "Supposed to"? Not at all!
Infectious discharge may leak into the peritoneal cavity and cause peritonitis, or abscesses may rupture causing a life-threatening surgical emergency.
In humans, eggs are typically fertilized in the fallopian tube. The embryo begins to divide and implants in the uterine lining. If the embryo implants in the fallopian tube, this is known as an ectopic pregnancy.
In a chicken also, the egg is fertilized in the first part of the hens oviduct.
In a woman's Fallopian tubes
Excellent question. Clinton abolished any scientific research regarding cloning and Bush followed suit. However, parts of Europe are still doing some tests in this area. Members of the UN are gearing up to debate highly the banning of human cloning. The guise is really to hide behind medical research (more organs available such as hearts, kidneys for those who need them) but this is a highly dangerous area to get into. 125 scientific and patient organizations from around the world have signed and presented a letter to the UN. One country of the UN, Costa Rica is backed by nearly 60 countries, including the U.S., for comprehensive banning on cloning. This includes both reproductive cloning to make babies, and the creaton of human embryos for use in medical research. Don't sit back and relax because cloning does go on under secrecy, so who knows what governments are involved. The other group of countries, led by Belgium, and backed by over 20 countries, wants a ban on reproductive cloning only. They argue for the right of stem cells grown from cloned embryos might lead to cures for countless diseases. Span has switched away from supporting a blanket ban because of its change from a conservative to a socialist gov't., after elections in March 2004. Britain funds and supports therapeutic cloning. It may come to a point that each country could quite possibly decide if their country should agree or disagree to cloning. ARGUMENTS USED AGAINST AND IN DEFENSE OF HUMAN CLONING: AGAINST: Cloning might lead to the creation of genetically engineered groups of people for specific purposes, such as warfare or slavery. Cloning might lead to an attempt to improve the human race according to an arbitrary standard. Cloning could result in the introduction of additional defects in the human gene pool. Cloning is unsafe. There are too many unknown factors that could adversely affect the offspring. A close might have a dimished sense of individuality. A clone might have fewer rights than other people. Doctors might use clones as sources of organs for organ transplants Cloning is at odds with the traditional concept of family. Cloning is against God's will. Some aspects of human life should ge off limits to science. IN DEFENSE OF: Cloning would enable infertile couples to have children of their own. Cloning would give couples who are at risk of producing a child with a genetic defect the chance to produce a healthy child. Cloning could shed light on how genes work and lead to the discovery of new treatments for genetic diseases. A ban on cloning may be unconstitutional. It would deprive people of the right to reporduce and restrict the freedom of scientists. A clone would not really bea duplicate, because environmental factors would mold him or her into a unique individual. A clone would have as much of a sense of individuality as do twins. A clone would have the same rights as do all other people. Cloning is comparable in safety to a number of other medical procedures. Objections to cloning are similar to objections raised against previous scientific achievements, for example, heart transplants and test-tube babies, that later came to be widely accepted. As you can see Naruto, this is a complex issue. While many lives could be saved through more heart, liver, kidney transplants by cloning, in the wrong hands, armies could be created, and think of this: What if Hitler or Hussein could be cloned! Humans should be careful what they wish for. The one point that seems to be missing from all of these arguments, on either side of the question, is the acknowledgment that efforts to clone human beings are going to continue, whether under governmental aegis or not. So perhaps the real question should be whether governments should remain engaged in order to control or guide the process, or whether they should simply ban cloning and leave it up to the non-participating governments or even underground laboratories? No we do not need to, we just want to. Cloning technology holds the key to solving a lot of the world's problems that might not otherwise be fixable. If you want a cure in the near future for lots of diseases like Parkinsons, cancer, etc, then yes we really need to study cloning.
The male reproductive system is a very sensitive organ so you should care of it.
1.) minimize the level of masturbation
2.) stop excess contracting your muscles and organs during ejaculation
3.) eat good and nutritive foods
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