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The seminal vesicles produce a yellowish viscous fluid rich in fructose and other substances that makes up about 70% of human semen. Human Compositionĭuring the process of ejaculation, sperm passes through the ejaculatory ducts and mixes with fluids from the seminal vesicles, the prostate, and the bulbourethral glands to form the semen. In marsupial and placental mammals, copulation occurs through the vagina. In most vertebrates, including amphibians, reptiles, birds and monotreme mammals, copulation is achieved through the physical mating of the cloaca of the male and female. Internal fertilization takes place after insemination of a female by a male through copulation.
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Female fish, for example, spawn ova into their aquatic environment, where they are fertilized by the semen of the male fish.ĭuring internal fertilization, however, fertilization occurs inside the female's sexual organs.
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In external fertilization, the spermatozoa fertilize the ova directly, outside of the female's sexual organs. Cryoconservation of animal genetic resources is a practice that calls for the collection of genetic material in efforts for conservation of a particular breed.ĭepending on the species, spermatozoa can fertilize ova externally or internally. In animals, semen has been collected for cryoconservation. Semen is also a form of genetic material. The fluid is designed to be discharged deep into the vagina, so the spermatozoa can pass into the uterus and form a zygote with an egg. In humans, seminal fluid contains several components besides spermatozoa: proteolytic and other enzymes as well as fructose are elements of seminal fluid which promote the survival of spermatozoa, and provide a medium through which they can move or "swim". The process that results in the discharge of semen from the urethral orifice is called ejaculation. Semen is produced and originates from the seminal vesicle, which is located in the pelvis. It is secreted by the gonads (sexual glands) and other sexual organs of male or hermaphroditic animals and can fertilize the female ovum. Semen, also known as seminal fluid, is an organic bodily fluid created to contain spermatozoa. We always have something to surprise you, today we have absolutely top Ass Fuck Cum Pussy videos.Spermatozoa, in this case human, are a primary component in normal semen, and the agents of fertilization of female ova.
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