Don't you know? It's okay. All the secrets of women will be opened for you here!
1. Women's secrets that women know.
For a long time, women's privacy has been regarded as a taboo topic and kept secret. Those pages in the physiology textbook were either torn off or told, "You don't need to read or learn this kind of thing!" Women are generally ashamed to explore their secrets, so many people know nothing about themselves, although they are women. In fact, a woman can't be called a real woman if she doesn't know enough about her reproductive organs.
Now let's walk into a real female world together!
Women are sacred, not only because they are beautiful and elegant, but also because they have given birth to new hopes in the world and enabled mankind to reproduce from generation to generation. But, women, do you know how your body completes this sacred mission? What ingenious structure makes you a complete woman?
Vagina, uterus, a pair of ovaries and a pair of fallopian tubes are the reasons why women become mothers. We call it female internal genitalia.
First, let's start with the vagina, the entrance to the internal genitalia. Vagina is a muscle duct organ. Under normal circumstances, the length of vagina is 8 ~ 10 cm. The upper end of the vagina surrounds the cervix to form a vaginal vault, and the opening at the lower end is the vaginal opening.
The vaginal wall consists of three layers of tissue. The inner layer of vagina is vaginal epithelium, similar to oral mucosa. The middle of the vaginal wall is the muscle layer, and the outer layer of the muscle layer is the fiber layer, which is covered with elastic fibers. The vagina has many transverse folds and good ductility, so the vagina is a flexible tubular organ with elasticity. The structure of vagina makes it have strong expansibility and elasticity. The upper end of vagina is wider than the lower end.
Because of the ingenious structure of vagina, male penis insertion, ejaculation and semen storage can be accepted during sexual intercourse. Vagina is also a channel for menstrual discharge and fetal delivery, so vagina is also called reproductive tract.
Then there is a paradise for women to give birth to babies-the uterus.
The uterus is located in the center of the pelvic cavity and is inverted pear-shaped. The position of the uterus in the pelvic cavity depends on four pairs of ligaments to maintain its normal position. The uterus is about 7.5 cm long, 4.5 cm wide and 2.5 cm thick.
The uterus is one of the most important organs for women. It helps women conceive and nourish the fetus, and provides a stable resting place for the unborn baby.
The fallopian tube is wonderful and important. As a noun, female friends are familiar with it, but not many people can tell what it looks like!
The fallopian tubes are a pair of slender and curved tubes, and the total length of the fallopian tubes is about 8 ~ 14 cm. One end of the fallopian tube is connected with the uterine horn, and the other end is close to the ovary, which is free and called the umbrella part of the fallopian tube. Umbrella-shaped protrusions, which extend to the surface of the ovary like fingers, can catch the eggs discharged from the ovary and have the function of "picking up eggs".
The fallopian tube consists of three layers, the outer layer is serosa and the middle layer is muscularis. Muscle contraction can help the fertilized egg move to the uterine cavity, and the inner layer is a mucus layer with fluff, which also swings in the direction of the uterus to help the fertilized egg move to the uterine cavity. After reaching the uterus, a little life began to grow.
Many women have misunderstandings about ovaries. They think there is only one ovary, but in fact every woman has a pair of ovaries. The ovaries are located on both sides of the uterus, near the fallopian tube umbrella and below the fallopian tube. Ovary oblate, about 4 cm long, 3 cm wide and 65438 0 cm thick. The average weight of the ovary is about 6 grams.
Ovary is a female gonad, which has two important functions: producing eggs and producing and secreting female hormones. Therefore, it not only has reproductive function, but also affects women's external beauty. Now there is a SPA that specializes in maintaining ovaries. Female friends may wish to experience it in their leisure time.
Walking into the mysterious palace of women, we have a deeper understanding of women. Women are so wonderful! As a woman, how can you not love yourself and be proud of yourself?
The scenery of "Peak" is unique here.
Breast enlargement is a sign of sexy women. From the popularity of various breast creams and pills, we can know that women attach importance to breasts. However, many times, because women don't have a comprehensive understanding of breasts, they randomly perform various "breast augmentation operations", leaving regrets for themselves, and some women even lose the right to feed their children. How painful it is for women! So, what are women's breasts made of? Why is there such a big difference in breast development?
Breast is one of the second sexual characteristics of women. It is not only an organ for lactation, but also one of the main sensitive areas. If you ask about the structure of breasts, I believe most women will answer that they are fat. In fact, the content and structure of breasts are very complicated, which is by no means as simple as we think.
The breast is located in the upper chest of a woman. The breast consists of 15 ~ 20 lobules with fat and fibrous tissue around them. The outside of these tissues is covered by skin, and each breast lobule is open to the nipple. The nipple is located at the top of the breast, composed of smooth muscle fibers and rich in nerve endings. After the nipple is stimulated by touch, the smooth muscle contracts and the nipple stands up. The dark area around the nipple is called areola, and the color of areola will deepen with the increase of women's age. To this end, many women will use an ointment to make the areola turn red again.
At the bottom of the breast are pectoralis major, breast tissue (mammary gland acinus and mammary duct), fibrous tissue and fat. Breast fullness is mainly determined by adipose tissue. Of course, the more developed pectoralis major muscles also make the breasts fuller and firmer.
Among them, the breast tissue is wrapped in the fibrous tissue that supports the breast and the fat tissue that plays the role of filling, which together form the soft and elastic conical breast of mature women. However, the development of women's breasts usually varies greatly. Some people are "Big Macs" and others are "Princess Taiping", so some people are agitated and some people are anxious. In fact, female friends don't have to worry too much about the size of their breasts. Except that it may affect the appearance a little, it will not have much impact on the body.
There are early and late breast development, big and small, and there is no absolute standard. It is usually influenced by receptor type, development, nutrition, heredity and other factors. People who are thin will also have small and flat breasts, while those who are short and fat will have fuller breasts, which is related to the amount of body fat. Some people have small breasts during their teenage years, but during pregnancy and lactation after marriage, due to the maximum development of breasts, not only the breasts become bigger, but also there will be a lot of milk. Therefore, girls should be careful not to be depressed because of their small breasts. Size doesn't matter, health is good.
However, there are also a few girls with abnormal breast development due to various reasons:
-Small breasts. It's just that breasts are small and flat like men. If the vulva develops normally and the menstrual regularity develops normally, it belongs to biological variation, so don't worry. When you get married and get pregnant, it usually increases. However, estrogen drugs can't be used casually because of small breasts, which often causes side effects such as menstrual disorder. The only way is to strengthen the exercise of chest muscles, massage breasts frequently, increase the curvaceous beauty of the body and promote the development of breasts.
-Breast asymmetry. This is mainly due to the poor response of smaller breasts to hormones. Hormone therapy is often ineffective, and massage is better. Some girls, due to incorrect writing posture and exercise habits, have different development of bilateral pectoralis major and its pedicle tissue, which also affects the symmetry of the left and right breasts. You can change your posture as long as you pay attention to it.
Breast dysplasia. Girl 16 years old or older, with undeveloped breasts and other sexual characteristics still in the teenage stage. Consider whether she is sexually stunted and see a doctor in time.
Mammary gland disease The breasts are huge and can hang down to the navel. This phenomenon is a rare pathological hypertrophy, which requires taking progesterone or surgical plastic surgery.
-Lots of nipples. That is, in addition to the normal development of the two nipples, there are many symmetrical nipples on both sides of the body, such as armpits and thigh roots, which are arranged on the corresponding lines of the mastoid ridge, among which the auxiliary line of the armpit is the most obvious, but it is generally underdeveloped and does not need special treatment.
-No breasts. It can be divided into complete agalactia and incomplete agalactia. No breasts at all means no breasts and nipples; Incomplete agalactia means that there are no mammary glands and nipples. Either way, it is congenital absence of mammary glands, and naturally there is no secretory function of mammary glands. At present, there is no cure for this abnormality. If menstruation and other sexual characteristics are normal, you can still get married and have children in the future, but you can't breastfeed.
If a woman knows her body, she won't have unnecessary worries; When a woman really understands her body structure, she can have and show her inner beauty.
3. Cherish women's "Great Wall of Human Body"
When we talk about a beautiful woman, we often first mention how fair and delicate her skin is. "Ice is bone, jade is spirit", "It warms and smoothes her creamy skin". Skin is a woman's second face. In fact, not only that, skin covers the surface of our body, which is the first defense barrier of the human body and is known as the "Great Wall of the Human Body". Women's skin will change greatly with physiological phenomena, so girls who love beauty should pay attention. Only by understanding the growth characteristics of the skin can we give proper care to the skin!
The total skin area of an adult woman is about 1.5 ~ 2 square meters. As the appearance of human body, it can block the invasion of bacteria and parasites, and it is a very important sensory organ. Through the skin, we can feel pain, touch and oppression, and feel cold and heat. Substances that are useless to the body can be excreted through countless sweat glands and sebaceous glands on the skin.
When we were little girls, our skin was smooth and delicate, and we could hardly see pores, but as we get older, girls' skin will gradually become rough. When we reach the age of 15 or 16, girls will begin to get pimples and comedones on their faces. The skin in this period is particularly sensitive, and if you don't pay attention to cleaning, it is easy to have various skin problems. In addition, many girls also find that before menstruation comes, the skin will be prone to oil and acne. The skin begins to age at the age of 24, and the vitality of skin cells is weakened, so women must pay attention to skin maintenance after the age of 24.
The physiological function of skin is to protect the body. It is mainly divided into epidermis, dermis and subcutaneous tissue. Both dermis and subcutaneous tissue contain a lot of fibers and a lot of blood vessels, lymphatic vessels, nerves, sweat glands, hair follicles and sebaceous glands. The capillaries of the skin are very rich, almost including the circulating blood of human body13, so it is easy to bleed when scraping the skin. According to statistics, there are about 3 million sweat glands in the whole body, which play the role of secreting sweat and regulating body temperature. Insufficient secretion of sweat glands makes the skin dry and prone to cracking; Sweating too much for a long time, the skin is too wet, which is conducive to the growth of bacteria and easy to get sores and ringworm. Female friends should adjust the dryness and wetness of the skin according to the environment to avoid skin damage.
Besides skin color, skin can also be divided into "dry" and "oily". For women with dry skin, the sebum secreted by sebaceous glands is small and even, with light skin color and inconspicuous pores, giving people a white and delicate feeling, but delicate, unable to withstand the "stimulation" of emotional changes and environmental changes, and prone to aging. On the other hand, oily women's skin has more sebum secretion, looks shiny and shiny, dark skin color, obvious pores, and some are like orange peel. However, it has strong resistance, can withstand wind, sun and various stimuli, and is not easy to wrinkle and age, but it is easy to grow acne. There is also a kind of neutral skin between "dry" and "oily", which is neither delicate nor rough, more beautiful, less sensitive and more tolerant. However, there are often different degrees of bias towards dry or oily skin. Women with three different skin types should use cosmetics differently.
Women's skin is like a mirror, which can reflect people's health. Healthy girls and young women, rosy and radiant; The sick woman's face was pale, shriveled and her skin shriveled.
Adolescent girls are in the stage of sudden growth, and their skin is delicate, smooth, rosy, elastic and full of youth. The component related to skin softness is hyaluronidase in dermis. In the elderly, the content of hyaluronidase in the skin is obviously reduced, so the skin is gradually aging and wrinkles appear.
However, women's skin will also be affected by inevitable physiological phenomena, accompanied by pathological changes, so women should take appropriate skin care methods according to their own skin quality and characteristics.
Every woman longs for beautiful skin. A woman with beautiful skin will look radiant no matter how old she is. However, it is not a simple matter to maintain beautiful skin. We must first understand the physiological characteristics of the skin, and then adopt scientific maintenance methods to make the skin shine.
4. The hidden secret of female hair
Every woman wants to have bright black hair, long eyelashes and thick eyebrows. People often use these words to describe the beauty of women. Hair may not be an important organ of the human body, but it grows in the most conspicuous place of the human body and is one of the indispensable elements of beauty.
Human hair is attached to the skin, which is vigorous and beautiful, making people look energetic, charming and touching, giving people a beautiful feeling, and it is also a sign of good health.
Some women often worry about too much hair and suspect that their hair development has problems. In fact, normal women are covered with hair follicles and hairs except lips, palms, soles of feet, nipples, back of fingers (toes) and inside of labia.
A woman has three kinds of hair in her life. First, newborn hair, also known as fetal hair. As early as the third month of the embryo, it began to appear on eyebrows, upper lips and cheeks, and it was still developing strongly until 8 months ago. Fetal hair is soft, light in color and capillary. Most of them fall off before birth and are replaced by secondary hairs.
Secondary hair is slender light-colored hair containing medulla. It is distributed in the trunk and limbs and is relatively strong. Hair, eyelashes and eyebrows are all secondary hairs. This kind of thin and soft hair is commonly called fetal hair. Mothers usually cut off the baby's fetal hair to make the baby grow stronger hair.
After entering puberty, girls have regrown hair in some parts of their bodies. This kind of hair is thicker. Female pubic hair and armpit hair belong to regenerated hair. Pubic hair grows outside the labia majora from the early youth and gradually spreads to the pubic mound; From 16 years old to 17 years old, the distribution in pubic mound is a typical inverted triangle unique to women. After pubic hair 1 ~ 2 years, axillary hair appeared. At this time, the girl's body hair is obviously one after another, but the body hair does not belong to regenerated hair.
Adult women have about 5 million hair follicles, of which about10 ~140,000 are located in the scalp. With the increase of age, the number of hair follicles gradually decreases. Hair itself keeps growing and falling off. Every hair has its own growth period, regression period and dormancy period. During the growth period, hair grows longer; Then enter the retrogression stage, the nipple degenerates and the hair stops growing; Then enter the rest period, nipple atrophy, hair ball keratinization, and stopped hair loss. Then, the nipple develops again, forming new hair balls and growing new hair. But unlike mammals, human hair does not have a certain time to shed its long hair, but gradually falls off and is gradually renewed. Female friends don't have to make a fuss about a small amount of hair loss, because this is a normal phenomenon.
The density of hair is the highest, and women's hair grows much faster than men's. The data given by a health magazine is that the length of day and night is 0.45 mm How's it going? It's amazing! The growth period of hair is about 3 ~ 4 years, the retrogression period is about several weeks, the rest period is about 3 months, and the life span of each hair is about 4 ~ 5 years. The growth period of eyebrows and eyelashes is 2 months, the dormancy period is as long as 9 months, and the life span is relatively short. So it is not surprising that we lose about 100 hair every day. Disease, malnutrition, mental stimulation and other factors will inhibit hair growth, make it enter the dormant period, cause hair loss and make hair scarce. If this is the case with you, you must be careful. How can a woman with all kinds of amorous feelings have no elegant hair!
Adolescent girls not only have exuberant regenerated hair, but also secondary hair develops one after another. Some girls have slightly thicker hair on their limbs, especially their forearms and calves, upper lips and cheeks, which is called constitutional hirsutism or idiopathic hirsutism. Most of them are normal physiological phenomena, so don't worry. However, if the face, chest, abdomen, limbs and other places are thicker than normal, and sometimes even the pubic hair is distributed in a male diamond shape, then it is necessary to consider whether it is caused by adrenal cortex or ovarian parenchymal lesions and must go to the hospital for examination and treatment.
Women should have a correct understanding of their hair. If you like flowing long hair, you shouldn't hate body hair everywhere, just as you can't refuse the late drum if you accept the morning bell!
5. Be a good daughter.
How wonderful and beautiful women are. Beautiful women are always refreshing. Artists all over the world like women's bodies. They use various artistic forms to express the beauty of women. Isn't that perfect curve and feminine charm completely different from men's bodybuilding, all created under the care of the creator?
/kloc-before the age of 0/0, we were not much different from boys except for our primary sexual characteristics. We are all flat and immature bodies. But with the passage of time, the girl's body began to change dramatically, and her appearance began to be obviously different from that of the boy, which is the second sexual characteristic of women.
Most of the girls' development first shows their height growth, and then their breasts begin to develop. Pubic hair appeared after about 1 ~ 2 years, and axillary hair and menarche appeared after 1 ~ 2 years. However, there are also a few girls who grow pubic hair while their height is growing rapidly, and then grow pubic hair after breast development or menarche.
Generally speaking, from the age of 10 to the age of 13, the vulva pubic hair is few and soft, and then the number gradually increases and the color gradually deepens. Have pubic hair after menstrual cramps, or after 18 years old.
Axillary hair is located under the armpit, which is also one of the second sexual characteristics of women. Like pubic hair, it is the result that the adrenal gland begins to secrete androgen. Axillary hair appears later than pubic hair 1 ~ 2 years. China female 14 ~ 15 years old has axillary hair. Nowadays, many women think that armpit hair affects beauty and will use depilatory to remove armpit hair. However, women who love beauty should pay attention to the rich sweat glands under their armpits and don't hurt themselves for beauty.
Of course, breasts are a prominent manifestation of women's secondary sexual characteristics. For women, it is not only an organ for feeding children, but also a symbol of beautiful women. There is no difference in appearance between girls' breasts and boys' breasts before puberty. From the age of 7 to 8, the girl's body system gradually develops. About 2 years later, under the joint action of ovarian hormone, pituitary hormone and insulin, the breast began to develop. If you are over 16 years old and have no breast development, you should be alert to developmental retardation or ovarian dysplasia. Normal breast development generally means that nipples begin to grow up, mammary glands proliferate, and breast nuclei are formed, and there are nodules or small lumps to the touch, which are painful. At the age of 12 ~ 13, the breast tube and subcutaneous fat are increasing day by day, the breast is gradually bulging and elastic, and the areola and nipple are darker. The little girl gradually became a curvy girl.
The female puberty is defined as 13 ~ 18 years old. After entering adolescence, many physiological changes will take place in girls. In fact, adolescence is also a transition period for girls to mature women. During this period, girls' height and weight will increase rapidly, and often when they come back from vacation, a girl will make people shine: how can a humble little guy suddenly stand up! One figure shows that adolescent girls can grow by an average of 9 cm in height and 8 ~ 9 kg in weight every year. No wonder some people say that "women have changed eighteen times"!
Adolescent girls will gradually show their feminine posture, which is the second peak of human growth and development. The following contents may help you to deepen your understanding of the physiological changes of adolescent girls:
① The functions of various organs of adolescent females tend to be mature.
② The heart weight also increased to 10 times of that at birth, which was close to the adult standard.
(3) The weight of the lungs has also increased to 9 times that at birth, and the respiratory function has become more and more perfect. Adolescent girls should exercise more and participate in outdoor activities. This is good for the development of your lungs.
(4) Adolescent girls should cherish the good times and study hard, because during this period, although the weight and capacity of the brain have not changed much, the structure of the nervous system is close to that of adults, and their thinking is active, their ability to respond to things is improved, and their ability to analyze and remember is also enhanced.
Adolescence is not only the mature period of women's physical development, but also the period when their psychology is prone to drastic changes. During this period, girls should make more psychological adjustments and spend their adolescence happily.
Every girl has to go through puberty to become a real woman. No matter whether adolescence gives you a sour or sweet feeling, you should cherish it, because you can only appreciate it this once.