SEMEN :::
This is the secretion of the male reproductive tract which is white and viscous it is derived from the
1.Testes proper
2.Epididymis
3.Seminal vesicles
4.Prostate gland and
5.Cowpers glands
Each ejaculation is of about 3-4 cc with 200-300 million sperms of which 70-80% are alive for the first hour It also contains sugar fructose semenogelin and other proteolytic enzymes calcium and citrate These is an enzyme called hyaluronidase found in spermatozoa which is responsible for rupturing the ovum of the female for conception
Prostaglandin is also found in mans semen The seminal fluid contains high concentrations of fructose which serves as an energy substrate for the spermatozoa in high concentration This increases the motility of uterus thus promoting the transport of spermatozoa in the female genital tract Fertility of man depends on the quality of semen for which two factors are important number and motility of spermatozoa A count of spermatozoa less than 20 million per ml of semen is considered as infertile or less fertile
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