1, the effect of testis on sexual ability
Testis is an important sex organ of men, which has the functions of producing sperm and secreting androgen. Male friends always pay close attention to the size of their genitals and think that their "model" determines their sexual ability.
Some male friends feel uneasy when they find that their testicles are smaller than others'. Some male friends feel that their testicles on both sides are large and small, and they also have concerns about sexual ability.
In fact, this kind of worry is unnecessary. As long as the size of your testicle is not less than 8 ml in adulthood, then its "model" has nothing to do with sexual ability. Under normal physiological conditions, the human body will always adjust itself automatically, so that its androgen is just enough, neither more nor less. Therefore, the size of testicles is not necessarily related to sexual ability.
Men pay more attention to the size of testicles than to the texture of testicles. The texture of testis can actually reflect the function of testis, especially the reproductive function. When spermatogenic epithelium and spermatogenic cells are underdeveloped or atrophied, the texture of testis will change. Both patients with spermatogenic dysfunction and elderly people with testicular hypofunction show testicular malacia.
The view put forward by andrologists at the symposium on male physiological aging held in Berlin, Germany, is that it depends on the hardness of testicles, the frequency of sexual intercourse and the general health status. When necessary, blood samples should be taken to measure the hormone concentration in men as supplementary evidence. It can be seen that the change of testicular texture also reflects the change of testicular function, which may precede the change of testicular volume.
Testicular hardness reflects a man's "youth". Young people's testicles are as hard, tough and elastic as freshly picked persimmons. With the growth of age, "youth" will gradually pass away and the testicles will become soft. The testicles of the elderly are as soft as persimmon weathered in autumn.
Testicular softening suggests that testicular function is decreased, accompanied by male dysfunction, such as decreased desire, difficulty in erection, male menopause and so on. At this time, you should consult a professional doctor, carry out relevant examinations, supplement as soon as possible, and keep a man "young".
2. Testicular spermatogenesis
Testis consists of seminiferous tubules and interstitial cells.
The seminiferous epithelium consists of spermatogenic cells and sertoli cells. Primitive spermatogenic cells are spermatogonia, and the kidney is attached to the basement membrane of seminiferous tubules. Since puberty, spermatogonia develops into sperm in stages, and the process of spermatogenesis is: spermatogonia → primary spermatocyte → secondary spermatocyte → spermatocyte → sperm. In the wall of seminiferous tubule, spermatogenic cells at different developmental stages are arranged in sequence from basement membrane to lumen, that is, spermatogonia, primary spermatocytes, secondary spermatocytes, spermatocytes and differentiated sperm, until mature sperm leaves supporting cells and enters lumen, and it takes about two and a half months to develop from spermatogonia to sperm.
Sertoli cells provide nutrition for germ cells at all levels and play a role in maintaining and supporting them. It provides a suitable microenvironment for the differentiation and development of spermatogenic cells, supports the blood-testis barrier formed by cells, and prevents the antigens of spermatogenic cells from entering the blood circulation and causing immune response.
The production of sperm needs a suitable temperature. The temperature in scrotum is about 2℃ lower than that in abdominal cavity, which is suitable for the production of sperm. In the process of embryonic development, for some reason, the testis does not descend into the scrotum and stays in the abdominal cavity or groin, which is called cryptorchidism, so the seminiferous tubules cannot develop normally and do not produce sperm. If the testis of mature animals is heated or experimental cryptorchidism is carried out, the degeneration and atrophy of spermatogenic cells can be observed.
Newborn sperm is released into the curved vas deferens, which has no movement ability, but is transported to epididymis through the contraction of myoid cells around tubules and the movement of lumen fluid. In epididymis, sperm further mature and gain motor ability. A small amount of sperm can be stored in epididymis, and a large amount of sperm can be stored in vas deferens and its ampulla. During sexual activity, sperm is transported to the urethra through the peristalsis of the vas deferens. Sperm is mixed with the secretions of epididymis, seminal vesicle gland, prostate and urethral ball gland to form semen, which is ejected at orgasm. Normal men ejaculate about 3-6 ml of semen at a time, and each ml of semen contains about 20 million to 400 million sperm, less than 20 million sperm, which makes it difficult for eggs to fertilize.
3. Ways to improve sexual function quickly
1, rub tintin
Lie on your back, palms facing each other, rub Tintin 1-2 minutes, and then repeatedly pinch it with your thumb and forefinger from Tintin root to glans for 2 minutes. The force should be gentle, the spirit should be concentrated, and it is appropriate to rub it until Tintin stands upright.
2, finger stimulation
If you go to work by bus every day, you can hook the handrail or rings in the car with your index finger; You can also hook your index finger and pull it repeatedly when you are free; Or massage your index finger with an umbrella handle. The index finger is the passage of the "large intestine meridian" of the human body, and the fingertip of the index finger is the "Shang Yang" point. Stimulating this point has obvious effects of consolidating sperm and strengthening yang. Moreover, this method is not limited by occasion and time, and it is very convenient to implement.
3, thenar ring push
Lie on your back, with your right hand pushing the thenar from the pubic hair along the left side of the scrotum, obliquely to the private parts of the meeting woman, and then pushing backwards from the right side of the scrotum. Push 20-30 times a day, stirring scrotum and Tintin from time to time, feeling Tintin's excitement and erection are the best.
4. Deeply knead and strengthen the kidney points
Standing, rubbing the palm roots of both hands repeatedly at Shenshu point on the back (lower side of spinous process of the second lumbar vertebra 1. 5 inches) about 1 min, and then rub both sides of the coccyx repeatedly for about 2 minutes. The rubbing force can be greater, the skin is reddish, and it is better to have a warm feeling.
5, palm push abdomen
Lie on your back with your hands crossed. First, push and knead from the midline of the upper abdomen down to the lower abdomen, and repeat for 20 times. Then push it down to the thigh root from the lower edge of the rib arch on both sides, and repeat it for 20 times. Then massage around the navel clockwise and gradually spread to the whole abdomen. Massage for 2-3 minutes, then press counterclockwise and massage the abdomen for 2-3 minutes in the same way.