Are the testicles hard?

The male reproductive organs and female reproductive organs are two completely different systems, but they complement each other. Without either set of male or female reproductive organs, the purpose of reproduction cannot be achieved. The testicles are the most important part of the male reproductive organs. They are the organs that produce sperm. For men, it is related to the core issue of fertility. Are testicles hard? Let's take a look at the explanation below. I hope everyone can understand it.

The testicles are located in the scrotum, one on each side, and the left side is generally 1 cm lower than the right side. The testicles are slightly flattened elliptical, 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 and back edges are attached to the epididymis head, and the lower end is free. The outer side is convex and the inner side is flat. The testicles grow rapidly with sexual maturity, and shrink and become smaller with the decline of sexual function in old age.

The surface of the testis is covered with a thick fibrous membrane 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 extend from the septum testis, dividing the testis parenchyma into many testicular lobules. The testicular lobules contain convoluted seminiferous tubules, the epithelium of which can produce sperm.

Testicular characteristics

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 in shape and grayish white in color. Adult testicles are 3.5-4.5 cm long, 2-3 cm wide, and 1-2 cm thick. Each testicle weighs 10-15 grams. 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 person's lifetime is astonishing. A single ejaculation of 3-4 ml contains 300-400 million sperms, and as few as 100-200 million. The number of sperms produced in a lifetime can reach more than 1 trillion. Sperm production 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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