The boy asks about the girl Please forgive me, I do want to know

The formation of the menstrual cycle in women is mainly due to the interaction between the superior organs that regulate ovarian function (hypothalamus and pituitary gland) and the ovaries.

During each menstrual cycle, a series of morphological and functional changes occur in the ovaries, including the development, maturation, ovulation, luteal production, and periodic secretion of estrogen and progesterone.

Changes in the secretion of these two sex hormones lead to a series of morphological and functional changes in the endometrium as well. These changes in the ovaries are caused by changes in the secretion of gonadotropins by the pituitary gland, which in turn is controlled by the hypogenetic hormones. In addition, estrogen and progesterone secreted by the ovaries have a feedback effect on the pituitary gland and the lower brain to regulate their activity.

In summary, the menstrual cycle is essentially an outward manifestation of periodic functional changes in the hypothalamic-pituitary-ovarian axis.

The changes in the endometrium during each menstrual cycle can be divided into 3 stages.

1) The menstrual period lasts for 4-5 days. As progesterone and estrogen levels in the blood are reduced to a minimum, and prostaglandins produced by the uterus combine to cause the spiral arteries to spasm and break down the blood in the lining of the lining**. This causes the endometrium and its blood vessels to become necrotic and detached, causing bleeding that flushes the dead lining into the uterine cavity.

On the other hand, an increase in prostaglandins can also cause contraction of the myometrium, which helps blood and lining drain from the uterine cavity, but can also cause menstrual cramps that accompany menstruation.

2) The proliferative phase (also known as the follicular phase in terms of ovarian changes) lasts about 10 days, that is, around the 5th to 14th days of the menstrual cycle. During this stage, due to the growth of follicles, more and more estrogen is secreted, so that the level of estrogen in the blood gradually increases, which has a repair effect on the endometrium. As a result, the lining gradually grows and thickens, and the uterine glands grow with it.

3) The secretory phase is also known as the luteal phase in terms of ovarian changes, which lasts about 14 days, that is, the 15th to 28th days of the menstrual cycle. This stage is due to the formation of the corpus luteum after the mature follicle ovulates at the end of the previous period, and the progesterone secreted by the corpus luteum acts on the endometrium. Progesterone causes blood vessels in the thickened endometrium to proliferate, congest, and causes the uterine glands to expand and bend and secrete mucus.

These changes in the lining favor the implantation of the zygote to conceive. If the corpus luteum is not conceived during this menstrual cycle, it will shrink due to the lack of support from the hormones, and the secretion of progesterone and estrogen will stop. When these two sex hormones in the blood drop to extremely low levels, the hypertrophic endometrium undergoes necrosis, bleeding and shedding due to the loss of hormone support, and the menstrual period begins.

Although a series of changes in the menstrual cycle are formed automatically in the body, the mental and psychological factors of the person can affect this automatic cycle change through the lower brain. For example, severe mood swings, changes in circumstances or suspicion of conception can cause menstrual cycle disruptions.

No, it's a kind of tissue shedding in the body, which looks very similar to blood, but it's not blood, it's just body tissue.

It's okay to do anything, it's just a ruan zi once a month, if you don't get fertilized, you will die in about 5 days, and you will be expelled from the body after death.

Young girls are mainly because of the back...

Summary. Hello, when a boy asks about girls, it doesn't make sense to say that you ask about these, in fact, it means that the boy still likes this girl very much, so he will care about the girl's things very much, and at the same time hope to be able to give the girl some help, so he will ask for no reason, but the girl doesn't like the boy very much, so she feels that the boy's concern is very irritating to her, so she doesn't want the boy to focus on his own things, and uses these to make excuses.

Hello, when a boy asks about girls, it doesn't make sense to say that you ask these things, in fact, it means that the boy still likes this girl very much, so he will care about the girl's things very much, and at the same time hope to give the girl some help, so he will ask for no reason, but the girl is not very fond of boys, so I feel that the boy's concern is very irritating to her Sanyanqin, so I don't want the boy to pay attention to his own affairs, and use these to make excuses.

This shows that the girl doesn't like you very much, right?

Yes, the girl doesn't like the boy very much, but the boy still likes the girl.

Yes. Honey, can you tell me if you're the boy or the girl? In this way, I can better help you answer your questions, and at the same time help you solve the confusion of love and hail.

Dear, good evening, very high rock is very happy to answer for you. What do you think of my behavior during this time, and the boy can ask the girl and say: I think it's good, you're very good, you're doing very well.

In fact, the boy just wants to get a feedback, get an affirmation, he wants his contribution to be seen and affirmed, then you can praise the other party, then the other party will be very happy, because being able to be praised by the people he cares about is a happy and happy thing. Dear, if you have any doubts, please feel free to ask, I wish you a happy life.