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Men (29257)
A man is a male human. The term man (irregular plural: men) is usually used for an adult, with the term boy being the usual term for a male child or adolescent (sometimes also applied to adult men). more...
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However, the term is also used for a human regardless of age or sex, sometimes even extended to more primitive humanoids than the present species Homo sapiens, as in apeman.
Age and terminology
Manhood is the period in a male's life after he has transitioned from boyhood, at least physically, during puberty. Many cultures have rites of passage to symbolize a man's coming of age, such as confirmation in some branches of Christianity, bar mitzvah in Judaism, or even just the celebration of the eighteenth or twenty-first birthday.
A boy is a male human child. For many, the word man implies a certain degree of maturity and responsibility that young men in particular often feel unprepared for; yet they may also feel too old to be called a boy. For this reason, many avoid using either man or boy to describe a young man and prefer colloquial terms such as bloke, lad, chap, fellow, guy or dude.
Biology and gender
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Humans exhibit sexual dimorphism in many characteristics, many of which have no direct link to reproductive ability, however most of these characteristic do have a role in sexual attraction. Most expressions of sexual dimorphism in humans are found in height, weight, and body structure, though there are always examples that do not follow the overall pattern. For example, men tend to be taller than women, but there are many people of both sexes who are in the mid-height range for the species.
Some examples of male secondary sexual characteristics in humans, those acquired as boys become men or even later in life, are:
deeper voice;
taller height;
facial hair or beard;
diamond shape pubic hair pattern;
increased body size overall;
less subcutaneous fat;
increase in overall body hair;
male pattern baldness;
coarser skin;
darker skin tone;
A higher level of androgenic hormones such as testosterone, making it easier for most men than most women to develop their muscles.;
The sex organs of a man are part of the reproductive system, consisting of the penis, testicles, vas deferens, and the prostate gland. The male reproductive system's function is to produce semen which carries sperm and thus genetic information that can unite with an egg within a woman. Since sperm that enters a woman's uterus and then fallopian tubes goes on to fertilize an egg which develops into a fetus or child, the male reproductive system plays no necessary role during the gestation. The concept of fatherhood and family exists in human societies. The study of male reproduction and associated organs is called andrology. Most, but not all, men have the karyotype 46/XY.
Read more at Wikipedia.org
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