| The seminal plasma of mammals contains a group of acidic proteins that bind to the spermatozoa. |
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| However, it is clear that only a small fraction of the spermatids develop into mature spermatozoa in males. |
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| No chromosome aberrations were found in human spermatozoa in vitro exposed to several chemicals, including dioxin. |
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| Rates of protein evolution were fastest for genes expressed during the dramatic morphogenesis of round spermatids into spermatozoa. |
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| Interspersed among the spermatozoa are what appear to be the cytoplasmic contents of degraded cells. |
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| When a female is inseminated with spermatozoa from an allospecific male, his spermatozoa successfully fertilize the eggs. |
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| Leeuwenhoek made groundbreaking observations in andrology by describing spermatozoa. |
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| The majority of these men have a low sperm count or spermatozoa of poor quality. |
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| If the spermatozoa showed no motility, a new tubule closer to the testis was selected, and the process was repeated. |
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| The testes in your body are continuously producing hundreds of millions of reproductive cells called spermatozoa. |
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| The role of the Sertoli cells is to nourish the developing and maturing germinal cells which are eventually released into the lumen of the tubule as spermatozoa. |
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| The chorion is also pierced by micropyles, fine canals that permit entry of one or more spermatozoa for fertilization. |
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| In intrauterine insemination, spermatozoa are inseminated in a small volume of fluid directly into the uterus. |
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| Blood cells, spermatozoa, and certain other dissociated tissue cells can be frozen to subzero temperatures and kept alive indefinitely. |
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| Consequently, in particular genetic modifications of spermatozoa or ova for fertilisation are not allowed. |
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| This is probably due to an improvement in energy generation within the spermatozoa themselves. |
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| Therefore nowadays, men who only have a few normal spermatozoa can sire children. |
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| Steroids may increase or decrease motility and number of spermatozoa in some male patients. |
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| Human life is a continuum and that continuum begins at the moment the ovum is fertilized by the spermatozoa. |
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| The egg and spermatozoa are kept for a maximum of 48 hours in the laboratory of reproductive biology. |
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| A vasectomy consists of cutting the tubes which allow spermatozoa to leave the testicles. |
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| Female and male structure differs only in that the follicles are filled with spermatozoa instead of eggs. |
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| The seminal plasma of mammals is a complex fluid, which serves as a carrier for the spermatozoa in their journey from the male testes to their target, the female uterus. |
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| Following the postmeiotic phase, spermatozoa are released into the lumen of the seminiferous tubule of the testis and transported to the epididymis for storage. |
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| The material collected was analyzed under optical microscope, and dissected with the help of 2 bistouries to liberate the spermatozoa from the tissue. |
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| Spermatocytes, the progenitors of spermatids, are biosynthetically active cells, producing all the components that will be needed in the mature spermatozoa. |
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| Is it wrong to employ existing techniques of sperm filtration, separating androgenic from gynogenic spermatozoa, and fertilising eggs with the desired type? |
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| Prolonged survival of fowl spermatozoa in the oviducal tissues in organ culture. |
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| In vitro evaluation of zwitterion buffers in diluents for freezing ram spermatozoa. |
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| It is not effective immediately, and further tests should be carried out over a period of some weeks to ensure that no spermatozoa are left after several ejaculations. |
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| Techniques for isolating spermatozoa from the seminal fluid involve separation by centrifugation gradients plus repeated washing and upward migration of the more mobile spermatozoa. |
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| It is also necessary for the production of healthy spermatozoa in men. |
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| As a result of the oxidative stress, the polyunsaturated fatty acid membrane undergoes peroxidation, and the spermatozoa lose function. |
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| Theoretically, the pre-ejaculate contains no spermatozoa. |
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| However, limited pieces of data exist about different factors connected with the efficacy of ICSI using frozen nonmotile testicular spermatozoa. |
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| Laparoscopic insemination technique with low numbers of spermatozoa in superovulated prepuberal gilts for biotechnological application. |
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| It sometimes occurs that two spermatozoa penetrate the egg simultaneously or that the nucleus of the egg doubles during the process of fertilization. |
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| Calcium bursts would increase spermatozoa motility, where cholesterol would decapacitate spermatozoa, so preventing untimely activation. |
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| During epididymal transit, spermatozoa bind to proteins that were secreted by the epididymis via epididymosomal transport. |
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| It is used in cases where the spermatozoa can not reach the fallopian tubes or simply by choice of the owner of the animal. |
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| The pericentriolar radial complex characteristic of the spermatozoa of other echinoderms is lacking in the spermatozoa of all sea urchins. |
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| The chromatin structure of the spermatozoa was evaluated using acridine orange according to a methodology proposed by Bochenek et al. |
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| Factors regulating changes of head-to-head agglutinability in boar spermatozoa during epididymal transit and capacitation in vitro. |
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| There is always a larger quantity of spermatozoa than of eggs. |
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| All the cells of epithelium with a variety of spermatogonia, spermatocytes, spermatids and spermatozoa were observed in enveloped Sertoli cells. |
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| Stage IV begins with the presence of spermatids and a few spermatozoa in the tubule lumen. |
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| After culture, the spermatozoa were flash frozen and analyzed for the percent damaged chromatin using the DNA fragmentation index. |
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| Lumina of the seminiferous tubules were lined by spermatozoa and rows of metamorphosing spermatids. |
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| They're specially formulated with a non-toxic spermicide that kills spermatozoa on contact. |
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| For instance, a female eastern oyster 76 mm long can release more than 80 million eggs, while a male of the same size will release billions of spermatozoa. |
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| This article reviews and discusses some of the current techniques employed for evaluating chromatin structure or DNA damage in spermatozoa. |
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| Normal men produce about one million spermatozoa daily. |
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| Hyaluronan Binding Assay is originated from the idea of selective mature spermatozoa binding to hyaluronan during the naturel process of fertilization. |
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| Effects on the motility of intact spermatozoa and on sperm axonemes. |
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| I found Plotz's book compulsively readable for the most part, especially when he is telling the tale of the American eugenics movement and Grahams obsession with spermatozoa. |
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| Among males, presence of convoluted epididymides and spermatozoa in seminiferous tubules and epididymides were used to define minimum size at sexual maturity. |
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| Percentages of capacitated and acrosome-reacted spermatozoa were determined by the chlortetracycline fluorescence assay described by Kuroda et al. |
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| It consists of transferring, to the uterine cavity, spermatozoa previously collected and processed, with the selection of morphologically more normal and mobile spermatozoa. |
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| Spermatozoa morphology, motility, plasma membrane integrity, acrosome integrity and DNA integrity were evaluated immediately after spermatozoa extraction. |
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| Ultrastructure of scorpion spermatozoa with atypical axonemes. |
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