How to use sperm in a sentence

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Sentence Examples Vasectomy works by using a clip to block the vas deferens, which connects the testicles to the urethra and keeps sperm out of the seminal fluid. Dolphins and porpoises are examples of odontocetes, as are belugas, narwhals, killer whales, sperm whales, and beaked whales. Here, males maintained a constant sperm number irrespective of whether a mating involved one, two, or three males. The minerals are passed on in a sperm packet during mating, to enrich the eggs. At the micropylar end where the pollen tube delivers the two sperm cells, the egg cell is flanked by two synergids that assist in fertilization. Proteins encoded by sperm genes in both males and hermaphrodites evolve more rapidly than most other types of genes. Selenium has also been shown to be important for sperm development and maturation. In both mammalian and amphibian eggs, integrins have been proposed as putative sperm receptors. Oedogonium grows in two different ways, through zoospores, or through syngamy of sperm and egg. Nature, of course, thinks of everything and it seems that a nudibranch getting its own sperm or eggs is impossible. To examine sperm transport in the female reproductive tract, males were mated with superovulated females. The fusion of egg and sperm restores the diploid chromosome number in the zygote. It is the sperm basal body that serves as a centriole in the zygotic microtubule organizing center. The parent also contains antheridia which produce sperm and an oogonium which produces the egg. For moss sperm, attempts at fertilizing the female of the species may be doomed before they even begin. Back in the days when whalers hunted sperm whales, they often reported seeing fish fly through the air when the leviathans surfaced. In this experiment, both sperm index evaluation and mating tests were performed on males from each of 146 different genotypes. A New York Times story reports a successful experiment in which jellyfish genes were mixed with the sperm cells of the rhesus monkey. He suggested that the secretions of the testis were present in the seminal fluid containing sperm. They also show evidence that humans used harpoons, floats and lines to catch their prey, which included sperm whales, right whales and humpbacks. Show More Sentences This is a new feature and contrasts with most free-sporing plants in which sperm, rather than the whole microgametophyte, move to the archegonia. Uranium molecules in the blood can travel to every part of the body, including the areas where sperm and eggs are. Smoking can cause infertility and an early menopause in women, and sperm problems in men. At maturity, the antheridium bursts releasing the sperm cells or antherozoids. The passage of sperm from the seminiferous tubules of the testis to the vas deferens takes about 12 days. A waiting period after vasectomy is required to clear the reproductive tract of sperm. It takes three months for the seminiferous tubules of the testes to produce sperm which is then stored in the epididymis. Many medical institutes now collect donor sperm for women who want artificial insemination. Bob, an army warrant officer, agreed to have his sperm frozen when he was diagnosed with a brain tumour. The seminiferous tubules in the testes, which are the origin of the sperm cells, however, will be reduced in diameter and size. Her husband Stephen had died four years earlier and she fought a long legal battle to use sperm taken from him before he died. A male water strider can dislodge the sperm of the previous male and thus tries to mate with many females. In addition to its role in sperm competition, seminal fluid stimulates oviposition and reduces female receptivity to future mating. In azoospermic men sperm can be retrieved surgically from the epididymis or from the testis itself. The treatments were typically instituted because the patients suffered from malformed cervixes which blocked the entry of sperm into the uterus. Upon his return from his whaling voyages, his ships were laden with typical whaling ship cargo like sperm oil and whalebone. It further attacked plans to remove anonymity for sperm donors from from 1 April. Specially prepared micropipettes are then used to aspirate sperm from these tubules. Fishermen found a 50-foot, 50-ton sperm whale beached on the coast of Taiwan last Saturday. The BabyStart kit contains a his-and-hers package of a sperm concentration test and six ovulation testers. Show More Sentences The medical method of choosing a baby's gender is to undergo fertility treatment, in which the egg and sperm are mixed in a test tube. After four or five days in space, the sperm will be returned to Earth where it will used to make test-tube piglets. The three main types of assisted conception are intrauterine insemination, in vitro fertilisation, and intracytoplasmic sperm injection. In mice, the signal that facilitates sperm movement probably does not reside in the seminal fluid but is provided by the sperm themselves. In turn, the squid is preyed upon by large fish such as marlin and swordfish, and it's a main staple of sperm whales. He was a very successful business man who turned to sperm banking, and he realized he had to sell to this customers. Many in the field of reproductive medicine shared his hopes and fears as well as his fascination with the eugenic potential of sperm banking. The sperm they banked would be the difference between having a family or not now that radiation therapy has destroyed their body's healthy cells. It is known that we can safely collect sperm samples for sperm banking up to twenty days after the start of chemotherapy. My feeling is that the patient should be adequately counseled regarding the risks and benefits as well as the possibility of sperm banking. We typically recommend checking every 3 months, and we offer sperm banking based upon the quality of the sample. Seconds later, at the edge of visibility, a sperm whale and her calf appeared. This suggests that the rate of sperm production or sperm maturation may be limited in some species. Increased boar usage generally does not result in increased sperm production. Giant squid beaks in the stomach of sperm whales are believed to be one of the prime sources for ambergris, a valuable substance used in making perfume. Lying between, and nurtured by, the Sertoli cells, the primary spermatocytes undergo two meiotic divisions and cellular remodelling to produce mature sperm. Hunter will undergo a CT scan to assess the extent of his cancer on Tuesday, and also said he planned to bank sperm before beginning his chemotherapy. Spermicide comes as a foam, jelly, or cream, and kills sperm. Over the years whalers have reported finding a high number of large squid beaks in the mammals' stomachs, pegging sperm whales as primary predators of large squid. Part of the work we do as a charity is to reassure men that they can have sperm banked, but now there will obviously be a fear that it won't work. Show More Sentences The cause of male infertility according to the medical model of infertility is due to abnormal sperm parameters, azoospermia and antisperm antibodies. In spite of what my logical brain was telling me, I think there was a nagging doubt that if I did not bank some sperm I might later regret the decision. Meiosis is completed shortly after ovulation, concomitant with the formation of an extensive sperm aster nucleated by the sperm-derived centrosome. The percentages of aneuploid bone marrow leukocytes were higher than those of aneuploid sperm for the two upper THH dose groups and for the positive control group. She had spent weeks hunched over a microscope looking at samples of sperm. A male blanket octopus fills a modified tentacle with sperm, tears it off, presents it to its prospective mates, and then drifts off to certain death. Drosophila melanogaster seminal fluid proteins stimulate sperm storage and egg laying in the mated female but also cause a reduction in her life span. The receptacles are reproductive branches and contain many cavities with external pores which contain antheridia and oogonia, then through meiosis, sperm and egg are produced. Females mate with multiple males and store the collection of sperm in the seminal receptacle and the paired spermathecae for later use in fertilizing eggs. The testicles are glands that produce sperm and the hormone testosterone. During copulation, he deposits sperm into her sperm receptacle and places a plug in it, perhaps to retain his sperm or prevent other males from mating with her. The enzyme is regulated by bicarbonate and involved in sperm maturation. The development of sperm and foetus technology in terms of test-tube babies has brought endless joy to many thousands of people but it still remains an expensive option. These people specialise in hunting toothed whales, principally sperm whales, in small hand-made ancient wooden boats complete with palm leaf sails. It would also help men too ill to bank sperm before chemotherapy. Blood products, sera, sperm, oocytes and embryos are not included. The ruptures break up the train and free any intact sperm for action. There are smaller satellite clinics that might do limited sperm banking. The sperm whale, a toothed mammal whose lower jaw resembles a vast surfboard with peaked crenellations at its edges, has been found at 3000 metres. Early experiments on mice have already indicated the possibility of turning stem cells into eggs or sperm which could then be used to help infertile couples. Show More Sentences Motile and total sperm number were counted in the randomly selected field for the inlet and outlet pools, respectively. Nevertheless, when the extent of sperm autoimmunization was taken into account, it was inversely correlated with the overall fertilization rate. Sometimes hormone therapy does the trick, but many infertile couples require more sophisticated manipulation of sperm and eggs. After the completion of copulation, the number of eupyrene sperm bundles in a spermatophore gradually decreased. Seventy percent of twins are fraternal and result from fertilization of two separate ova by two different sperm. Spermatoceles are intrascrotal cysts containing sperm that derive from the small tubules of the epididymis. At the same time the middle piece breaks down and releases the centriole, around which egg cytoplasm forms the sperm monaster. One or more males approach the female in her redd, depositing sperm, or milt, over the roe. If they run short of food, they first stop producing eggs and sperm, and then shrink in size. This triggers spawning in the rest, clouding the water with millions of eggs and sperm. Two gonads sit next to the coelom, a small cavity that surrounds the heart, into which they shed ova or sperm. The Y chromosome is passed exclusively through sperm, which undergo multiple cell divisions during gametogenesis. By using highest male-specific spermatocrit as a reference value, we equalized number of sperm cells across the 48 fertilizations. Did I see Daddy Average towing his sperm blossoms to the game? Of course not. I saw no kids at all. High speed videomicrography has been used to simultaneously assess both the motility and morphology of sperm from fertile and infertile men. Hyaluronic acid binding by human sperm indicates cellular maturity, viability, and un-reacted acrosomal status. On his journey, Whaley meets an orca whale, a humpback whale, a gray whale, a white beluga whale, a sperm whale, and a whale shark. After a sperm penetrates the zona pellucida, the protective barrier around the egg, it travels to the egg's outer membrane. Recombination is vital to a species' genetic diversity, ensuring that sperm or eggs will have novel combinations of genetic traits. Relationship among fluctuating asymmetry, morphological traits, and sperm quality in layers. Show More Sentences When needed, the dried sperm pellet could be resuspended in a drop of biological fluid similar to that in which human eggs are held. Retrotransposons pepper our genome, moving to future generations in egg and sperm. These remnants of ancient infections result from instances in which a retrovirus happened to slip inside a host's sperm or egg cell. Rowe, 50, insists that she is the children's biological mother but has admitted she used donated sperm. The divergence of species-specific abalone sperm lysins is promoted by positive Darwinian selection. We've seen stranded sperm whales, pilot whales, beaked whales, and bottlenose whales. The waters around the islands are home to pods of huge sperm whales, northern bottlenose whales, pilot whales, Orcas and Sowerby's beaked whales. After 50 min, eggs were examined by microscope to detect self-fertilization or sperm contamination. The primary function of the prostate gland is to produce seminal fluid that nourishes and transports sperm. The prostate makes fluid that is part of the seminal fluid and helps to keep sperm working normally. The seminiferous tubules, sperm counts, and testosterone levels of BPA-exposed mice were also not significantly different. Daily cycles of release of sperm from the testis of the Mediterranean flour moth. The new paper improves the case for springtail sperm delivery, says evolutionary bryologist Nils Cronberg of Lurid University in Sweden. When pregnant rats are exposed to the fungicide vinclozolin and the pesticide methoxychlor, their male offspring produce abnormal sperm. The camerawoman, identified by the site as Suleman's best friend, says at one point that the sperm donor has a wife and family. When using ToConceive, the woman's natural conception lubrication increases and changes to capacitate the sperm. A remarkable increase in the pHi sensitivity of voltage-dependent calcium channels occurs in human sperm incubated in capacitating conditions. Lipid composition and thermotropic phase behavior of boar, bull, stallion, and rooster sperm membranes. Intracytoplasmic sperm injection pregnancy with trisomy 20p and monosomy 22q in a newborn resulting from a balanced paternal translocation. If the somatic cell number is reduced, fewer functional sperm will be produced. Show More Sentences There was an improvement in both sperm density and motility following supplements of the coenzyme. Then, the sperm are held in a receptacle between the ovipore and ovary, known as a spermatheca, till the release of an egg. The sperm in spermathecae is always organized into spermatozeugmata consisting of fertilizing and cortex cells. We determined whether the ovaries of female flies contained mature eggs and whether their spermathecae contained sperm. During the spermatid stage of sperm development, mitochondria undergo an extensive metamorphosis to form two mitochondrial derivatives. Mammalian spermatogenesis occurs continuously with individual maturation of sperm through meiotic division of spermatocytes. The court order would allow the funeral home to clear the way for a sperm bank to handle the procedure. We moved on to fertility drugs and then frozen sperm purchased through a sperm bank. The big clue came when he went to Billy's sperm bank and asked for a withdrawal. She decided that if she couldn't find Mr Right to be the father of her children, she would use a sperm bank and have a child on her own. At sperm banks, lengthy questionnaires are completed by both sides, to provide the best match possible for characteristics the couple seeks. Inside this heart-shaped box are five mini microbes a sperm cell, a egg cell, kissin disease, penici and an exclusi Amoeba. One possible cause of spermrelated problems is oxidation, which may damage the membrane of the sperm cell. In August, scientists from Kyoto University said they had created sperm cells from mouse embryo stem cells. A basic spermiogram was prepared, and sperm motility and morphometric variables recorded using a computer-aided system. If you've ever used genuine, honest-to-gosh sperm oil then you've got some idea of what NyOil is like. Seconds after partners position their structures for simultaneous sperm transfer, the slugs each insert a second organ, a needlelike stylet. We also provide information on cloacal protuberance size as it pertains to mating behavior and sperm competition. The females still visited their previous, studlier partners and, somehow, used their sperm to fertilize eggs that turned into sons. They have stylets shaped like hooks with which they jab other worms anywhere in their bodies, and inject the sperm. Show More Sentences Characterization of human sperm populations using conventional parameters, surface ubiquitination, and apo ptotic markers. Because each egg and each sperm of a fraternal zygote contain slightly different genetic material, these two embryos do not have identical genetic makeups. A successful male stays in amplexus for several days and, as the female lays a long, double string of small black eggs, he fertilises them with his sperm. The researchers observed an average of 4,000 structural changes to sperm cell DNA from the time before the surgery, directly after, and one year later. Cryos ships sperm to every part of the world apart from Antarctica and the company is now planning to set up sperm banks elsewhere to cater to different wishes. After being discharged from the spermatophore in the spermatophoric reaction, the sperm mass is encased in a thin covering, with the cement body at one end. The final step in the developmental process, termed spermiogenesis, is the conversion of a haploid round spermatid to a polarized, flagellated, motile spermatozoon or sperm. The female needs the sperm to stay healthy whilst they are in storage in the spermatheca, so that they are viable each time she uses them to reproduce. Exposure to environmental toxicants that disrupt sperm production or the function of reproductive hormones or sperm may increase the risk of male infertility. The cells' drill bit-shaped heads and grainy texture resemble the sperm of Branchiobdellida, a group of squiggly worms that crawl on freshwater crayfish today. Results indicate that occupational exposures to relatively low levels of benzene were associated with increased incidence of chromosomally defective sperm. Infertility in male is characterized by various infertility related problems such as low sperm count, presence of low motile sperm or azoospermia. If the idea of a kid who shares genes with you running around somewhere doesn't freak you out, then by all means, sell your baby batter to a sperm bank. It collects sperm into a cervical cap at the end of condom-like sheath. The B pattern, dim fluorescence in the postacrosomal region and relatively bright fluorescence in the acrosomal region, is indicative of capacitating and capacitated sperm. The most common biogenic amines found in foods are histamine, tyramine, cadaverine, 2-phenylethylamine, spermine, sperm idi ne, putrescine, tryptamine, and agmatine. The scientists mimicked the fluid flow in a culture dish by hooking up a tiny glass tube to a device called a micromanipulator and using it to slowly suck sperm into the tube. At that time, the testes enlarge, enabling them to hold more sperm. Physiological stress responses, egg survival and sperm mortality for rainbow trout broodstock anaesthetized with clove oil, tricaine methanesulfonate or carbon dioxide. Preliminary reports from those centers, which primarily performed intrauterine insemination with washed sperm, showed no seroconversions in the mothers or babies. Show More Sentences Levels of saturated fatty acids in sperm were also negatively related to sperm concentration, but saturated fat intake was unrelated to sperm levels. Doctors have visited from Europe and a Syrian doctor is now working with a couple to try and grow sperm from the stem cells of a man with aspermia. British scientists Robin Baker and Mark Bellis even proposed a decade ago that human sperm take multiple forms, including kamikazes to destroy leftovers from other men. And the 45ft long sperm whale which beached in May 2011 will now never be forgotten after its jaw bone went on display at the town's Zetland Lifeboat Museum. That is because the freezing process damages the zona pellucida, the outer shell of the egg, to which the sperm normally must bind before penetrating the egg. Triploid eggs produced mostly aneuploid larvae and had an extremely small chance of generating viable offspring when fertilized by sperm from diploid males. A doctor then diagnosed her husband with a condition called Azoospermia, an infertility issue many men face and is commonly known to mean no sperm count. Researchers from the academy are working on a robot that can choose which sperm cell has the best morphological characteristics and insert it directly into the ovum cell. Spermatogenesis is a specialized process of differentiation of haploid round spermatid cells to the highly specialized sperm cell, the spermatozoon. Effects on the motility of intact spermatozoa and on sperm axonemes. It is possible that the uterine contractions speed the sperm along. Damaged sperm cells cannot protect themselves from oxidative stress. I was impregnated at a clinic but don't know who the sperm donor is. The sperm count has to drop quite a way before fertility is eroded. And the team of scientists, at the universities of Lyon and Saint-Etienne in France and Keele in the UK, found that the higher the aluminum, the lower sperm count. A 32-year-old man presented with a very low sperm count and impotence. A man's level of physical activity and the time he spends watching television appears to have a direct relationship to his sperm count, according to a study published Feb. Examples from Classical Literature By some fishermen his approach is regarded as premonitory of the advance of the great sperm whale. Recently, our laboratory reported, for the first time ever, that the curcumin affects sperm function in vitro and fertility in vivo. In general, the same remark, only within a less wide limit, applies to the solitaries and hermits among the matured, aged sperm whales. I am told, on good authority, that on the Barbary coast, a Commodore Davis of the British navy found the skeleton of a sperm whale. Ameliorative effect of vitamins on PCB induced oxidative stress in rat epididymal sperm. The moving fluid hands sperm a map to their target, researchers report in the March 18 Current Biology. A recent French study showed a 20-year decline in Parisian men's sperm counts. To breed, the male forces his cloaca against the female's, so the sperm cells can be transferred. It is an ineffably oozy, stringy affair, most frequently found in the tubs of sperm, after a prolonged squeezing, and subsequent decanting. Now, while discoursing of sperm, it behooves to speak of other things akin to it, in the business of preparing the sperm whale for the try-works. As yet, however, the sperm whale, scientific or poetic, lives not complete in any literature. Do you not marvel, then, at Stubb's boast, that he demanded but ten minutes to behead a sperm whale? Scientists have held out hope of resurrecting the woolly mammoth by extracting sperm from animals encased in ice. On this hint, attempts have been made to construct elaborate migratory charts of the sperm whale. Men, who consumed a rasher of bacon daily, had lower amounts of normal sperm compared to others. A light and electron microscopical study of the spermathecae and ventral receptacle of Anastrepha suspensa and implications in female influence of sperm storage. Prince Frederic von Anhalt, 61, says he has donated sperm at a Beverly Hills clinic and plans to use it to fertilise donor eggs which will be carried by a surrogate mum. Lester, a sperm donor for Jacko, has offered to take DNA tests. The sperm is filtered by swimming through layers of liquid albumen. The unmanufactured sperm oil possesses a singularly cleansing virtue. Show More Sentences Men make millions of sperm every day and millions in excess of needs. The new study found that young Danish men who consumed the most saturated fats had significantly lower concentrations of sperm, the New York Daily News reported. In 1714, it was discovered that a sperm whale had a cavity above its brain containing as much as 500 gallons of white oil that burned cleanly, which was named spermaceti. The infertility in males today can be attributed to a range of factors such as low sperm count, no sperm count or azoospermia, malformed sperms or low sperm motility. Find more words! 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What is the opposite of sperm? Words that rhyme with sperm What is the past tense of sperm? What is the plural of sperm? What is the adjective for sperm? What is the noun for sperm? Translations for sperm Use our Sentence Generator Nearby Words spent Spenserian Spenser spendy spend time at spend time spermaceti spermatheca spermatic spermatid spermatocytes spermatogenesis 5-letter Words Starting With s sp spe sper