Fluids in sperm

Semen , also called seminal fluid , fluid that is emitted from the male reproductive tract and that contains sperm cells, which are capable of fertilizing the female eggs. Semen also contains other liquids, known as seminal plasma , which help to keep the sperm cells viable. In the sexually mature human male, sperm cells are produced by the testes singular, testis ; they constitute only about 2 to 5 percent of the total semen volume. As sperm travel through the male reproductive tract, they are bathed in fluids produced and secreted by the various tubules and glands of the reproductive system.
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Sperm content of pre-ejaculatory fluid

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Sperm content of pre-ejaculatory fluid

The testes are the primary reproductive organs and generate sperm cells through a process called spermatogenesis. The glands of the male reproductive system produce sperm and seminal fluid. The prostate gland, the seminal vesicles, and the bulbourethral glands contribute seminal fluid to semen, which carries and protects the sperm. During sexual intercourse, semen moves through a series of ducts to deliver the semen directly into the female reproductive system. The testes or testicles are the male gonads and sit below the penis within a sac called the scrotum.
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Producing and Delivering Sperm: The Male Reproductive System

This study was designed to establish whether motile spermatozoa are released with pre-ejaculatory fluid and whether this fluid therefore poses a risk for unintended pregnancy. Forty samples of pre-ejaculatory fluid were examined from 27 volunteer men. Samples were obtained by masturbation and by touching the end of the penis with a Petri dish prior to ejaculation. The volunteers produced on up to five separate occasions and sperms were found in either all or none of their pre-ejaculatory samples.
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Semen is a substance produced by the male reproductive organs. It is composed of spermatozoa in a semi-viscous fluid. Structures within the male reproductive tract that are involved in the production of semen include: Testes and epididymis Prostate Seminal vesicles Bulbourethral gland Semen is produced as a combination of secretions from the different regions of the male reproductive tract. Each fraction differs in chemical composition and function.
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