Patient's question:
Hello! The content of the answer you provided is not specific, can you elaborate a bit more!!!!Doctor's answer:
Semen is composed of sperm produced by the testes, secretions, and the secretions of the genital duct glandular structures (such as the epididymis, prostate, seminal vesicles, and urethral glands). The fluid secreted by the prostate, seminal vesicles, and bulbourethral glands collectively form semen. Semen serves as the essential medium for transporting sperm and provides energy and nutrients for the sperm.During ejaculation, although it appears as a single emission, it is actually divided into three parts based on the order of the various fluids being expelled: first, the fluid from the bulbourethral glands is expelled, approximately 0.1 to 0.2 ml, followed by the fluid from the prostate and sperm, totaling about 0.5 ml, and finally, the fluid from the seminal vesicles, approximately 2.0 to 2.5 ml. The total volume of these three components combined is 2 to 5 ml.
Semen appears grayish-white, has a certain viscosity and odor, and is alkaline in reaction. One cubic milliliter of human semen contains 60 to 150 million sperm. An average ejaculation volume is about 3 to 5 ml, meaning each ejaculation expels more than 120 to 300 million sperm.
The primary component of semen is water, accounting for more than 90%. Among the formed elements, in addition to mature sperm, there are approximately 1% of other cells, such as immature spermatogonia, spermatocytes, and epithelial cells shed from the genital tract, as well as a small amount of white blood cells. In pathological semen, the content of these cells can exceed 30%. In addition to cells, semen also contains fat and protein granules, pigment granules, prostaglandin-rich particles from prostatic fluid, inorganic salts, enzymes, lactic acid, and fructose.
Among the inorganic salts, calcium is particularly abundant, with a content of approximately 100 milliliters...