The temperature of the testicles is also critical, but many male friends do not pay attention to this problem. Even if they find that the temperature of their testicles is high, they do not care much. This will result in not being able to know in the first time if there is a problem with their testicles. In fact, too high a testicular temperature will lead to many inflammatory changes, and eventually lead to orchitis, so you still need to pay attention. The testis is located in the scrotum, one on each side, and the left side is generally 1 cm lower than the right side. The testis is slightly flattened oval with a smooth surface, divided into inner and outer sides, front and back edges, and upper and lower ends. The front edge is free; the back edge has blood vessels, nerves and lymphatic vessels entering and exiting, and is in contact with the epididymis and the testicular part of the vas deferens. The upper end and the back edge are attached to the epididymis head, and the lower end is free. The outer side is convex and the inner side is flat. The testis grows rapidly with sexual maturity, and shrinks and becomes smaller with the decline of sexual function in old age. There is a thick fibrous membrane on the surface of the testis, called the tunica albuginea. The tunica albuginea thickens along the posterior edge of the testis and protrudes into the testis to form the septum testis. Many connective tissue septa emanate from the septum testis, dividing the testicular parenchyma into many testicular lobules. The testicular lobules contain convoluted seminiferous tubules, the epithelium of which can produce sperm. The connective tissue between the tubules contains interstitial cells that secrete male hormones. The seminiferous tubules combine to form the straight seminiferous tubules, enter the septum testis and interweave to form the rete testis. 12 to 15 testicular efferent ductules emanate from the rete testis and enter the epididymis from the upper part of the posterior edge of the testis. feature Testicles are male internal reproductive organs. Normal men have two testicles, one on the left and one on the right side of the scrotum. Testicles are oval and grayish white. Adult testicles are 3.5-4.5 cm long, 2-3 cm wide, 1-2 cm thick, and weigh 10-15 grams per testicle. Generally, the left testicle is about 1 cm lower than the right testicle. Some people have one testicle that is larger than the other, or one that is higher than the other. If the difference is not too big, it is normal. There are a large number of curved seminiferous tubules in the testicles, which contain interstitial cells. The seminiferous tubules are where sperms are produced. The number of sperms produced in a man's lifetime is astonishing. A single ejaculation of 3-4 ml contains 300-400 million sperms, or as few as 100-200 million. The number of sperms produced in a lifetime can reach more than 1 trillion. The production of sperms is easily affected by many factors, such as temperature. If the temperature around the testicles is too high or affected by chemical toxins, sperm production will be impaired. Interstitial cells produce androgens, which are closely related to male secondary sexual characteristics and physiological functions. |
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