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. 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. 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. All rights reserved.Spermatozoa, in this case human, are a primary component in normal semen, and the agents of fertilization of female ova. reserves the right to make additions, deletions, or modification to the contents on the Website at any time without prior notice.Ĭopyright © 2013-2022. In no event shall be liable for any special, direct, indirect, consequential, or incidental damages or any damages whatsoever, whether in an action of contract, negligence or other tort, arising out of or in connection with the use of the Website or the contents of the Website. Accordingly, to the extent permitted by applicable law, we exclude all express or implied warranties, terms and conditions including, but not limited to, implied warranties of content, fitness for a particular purpose, and non-infringement. Terms of service: You agree that you are making use of our services at your own risk, and that they are being provided to you on an "AS IS" and "AS AVAILABLE" basis. We do our best to delete links to inappropriate content expeditiously, when it is reported. to remove a link and a thumbnail from the Website please use report button (gray X at the bottom of every video).to remove a physical video file please contact the site owner where the content is hosted.If you find inappropriate content that you believe should be removed (illegal content, copyright infringement or dead links): We do not own, produce, host or upload any videos displayed on this website, we only link to them. Indexing process is completely automated.
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