| The seminiferous tubules were gently pelleted and subjected to proteinase digestion and DNA extraction. |
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| It takes three months for the seminiferous tubules of the testes to produce sperm which is then stored in the epididymis. |
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| The seminiferous tubules in the testes, which are the origin of the sperm cells, however, will be reduced in diameter and size. |
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| The neoplastic cells surrounded glomeruli and invaded renal tubules forming lymphoepithelial lesions. |
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| In addition to the tubules, the epithelial cells may also form nests, cords, single cells, micropapillae, and keratinous cysts. |
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| Cuvierian tubules are peculiar organs found in several species of holothuroids, all belonging exclusively to the family Holothuriidae. |
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| Typically, the small-sized tubules are in an early gametogenic stage and the largest tubules are mature. |
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| These laticiferous tubules are the source of the milky latex that is used to make natural chewing gums and rubber. |
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| Here, we can observe dentine tubules around which the apatite has been partially resorbed. |
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| The retiform pattern consists of elongated, slitlike branching tubules containing intraluminal papillae lined by flattened to cuboidal cells. |
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| The epithelial component showed tubules and cords of cuboidal cells with pink cytoplasm and small oval nuclei. |
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| The ability of leptospires to persist in mammalian renal tubules reflects a highly evolved form of parasitism. |
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| Each hair-like cilium is associated with a set of tubules and structural protein molecules that make up a kinetosome. |
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| In seawater, the expelled tubules lengthen considerably and become sticky upon contact with any object. |
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| At the pulp end of dentinal tubules is a layer of cells called odontoblasts. |
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| The spindle-shaped cells surrounded and entrapped islands of unremarkable renal parenchyma composed of glomeruli and tubules. |
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| Histologically, the mass was composed predominantly of immature neuroepithelial tissue forming rosettelike structures and tubules. |
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| Stones may form in the kidneys, blocking blood from passing through the nephrons and tubules to be filtered. |
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| The three-year study showed these patients had interstitial nephritis and severely damaged kidney tubules. |
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| They reduce sympathetic nervous tone and induce natriuresis by their actions on the renal vasculature and tubules. |
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| When the expelled tubules elongate, the inner epithelium is disrupted and the contents of the epithelial cell spherules are released. |
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| The tubules showed moderate-to-severe atrophy with scattered dilated tubules. |
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| There were bile casts present in the lumen of the proximal tubules of both kidneys. |
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| Breathing is by special gas exchange organs along the side of the body called tracheae and malpighian tubules. |
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| Lesions present in the peritubular capillaries, arterioles and renal tubules were recorded. |
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| Occasionally, the number of tubules in a blade or the number of blades was different along the longitudinal axis of a basal body. |
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| Expression has also been monitored in peripheral tissues such as the Malpighian tubules. |
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| In contrast, the gut, the Malpighian tubules, and the fat bodies were nearly normal in size and shape. |
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| The drawing shows a typical alimentary canal and the Malpighian tubules of a leafhopper. |
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| Fairly well differentiated renal tissue with embryonic glomeruli and tubules. |
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| The excretory system is composed of a dorsal excretory gland and a pair of Malpighian tubules. |
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| Specially prepared micropipettes are then used to aspirate sperm from these tubules. |
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| The mesenteron and Malpighian tubules are generally responsible for detoxification by accumulation of ingested metal salts in insects. |
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| The passage of sperm from the seminiferous tubules of the testis to the vas deferens takes about 12 days. |
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| Urine, consisting of these metabolic wastes plus variable amounts of water, passes through a network of small uriniferous tubules and collecting ducts within the kidney. |
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| Leading from the seminiferous tubules are the tubuli recti or straight tubules lined only with columnar cells apparently derived from Sertoli cells. |
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| Excretion of nitrogenous waste takes place through Malpighian tubules. |
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| On the other hand, no Leydig cells were seen microscopically in case 8, with tubules containing only Sertoli cells, being absolutely devoid of germinal cells. |
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| Three trained observers reviewed each stallion's histology slides by quantifying the number of spermatids within 25 cross-sectioned round seminiferous tubules. |
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| In severely degenerated tubules, only spermatogonia and Sertoli cells were observed, and pachytene spermatocytes sloughing into the lumen were observed. |
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| In at least two, widely divergent systems, electron-dense extracellular tubules have been observed surrounding developing spores during sporogony. |
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| The researchers are focusing on differences in gene expression within cells in a special site inside the hen's reproductive tract, called the oviductal sperm-storage tubules. |
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| Using scanning electron microscopy, researchers uncovered evidence of dentinal tubules, basic structures that exist in almost all teeth, including humans. |
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| Submucosal proventricular glands, consisting of secretory units and collecting tubules, occupied parts of the choristomal wall. |
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| Associated with the digestive tract, but part of the excretory system, are the Malpighian tubules. |
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| The seminiferous tubules may be preserved, atrophic, or completely obliterated. |
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| Testicular dysgenesis affecting the seminiferous tubules principally, with chromatin-positive nuclei. |
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| The blood-testis barrier is a physical barrier between the blood vessels and the seminiferous tubules of the testes. |
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| Lumina of the seminiferous tubules were lined by spermatozoa and rows of metamorphosing spermatids. |
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| The fibrous septae separating the tubules were pauci-cellular and lacked the appearance of ovarian stroma. |
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| This causes a significant decrease in the energy for the sodium-potassium pump in the proximal tubules. |
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| In the experiment, these motors permanently push the tubules alongside each other. |
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| Factors such as viruses, anticancer drugs, hormones, radiation and toxic materials, including cadmium, induce cell death in seminiferous tubules. |
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| The rete testis showed extensive cystic dilatation as did the tubules in the epididymal head. |
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| The splenic tissue was separated from the seminiferous tubules by a splenic capsule and vascular fibrous connective tissue. |
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| At 109 and 110 day-old sturgeon, developing testicular tissue was observed and included the presence of seminiferous tubules and vas deferens. |
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| Spermatozoa move to the epididymis by the flow of fluid into the lumen of the seminiferous tubules from the adluminal spaces. |
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| These buds branch as they grow cranially and caudally and eventually form tubules and acini. |
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| Also, there was disorganization of plasmalemma in the basal portion of few seminiferous tubules. |
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| The seminiferous tubules, sperm counts, and testosterone levels of BPA-exposed mice were also not significantly different. |
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| Spermatoceles are intrascrotal cysts containing sperm that derive from the small tubules of the epididymis. |
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| The process of spermatogenesis takes place within the coiled seminiferous tubules, and continues from puberty to old age. |
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| On the development and shape of uriniferous tubules of certain of the higher mammals. |
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| This process promotes the maturation of the seminiferous tubules and spermatogenesis. |
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| In addition, the expression of miR-34c was upregulated rapidly indicating that mi-34c was important for the growth of seminiferous tubules. |
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| In accordance with previous studies we immunolocalised both PEPCK and G6PC to the proximal tubules of the kidney cortex. |
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| CaSRs are also present on the luminal membrane of the distal convoluted tubules, and activation of these receptors increases calcium reabsorption via TRVP5 channels. |
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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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| Renal meronts and gametocytes were confined to the distal convoluted tubules and collecting ducts, and were associated with renal tubular necrosis and tubular obstruction. |
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| The tubular structure of both testes was completely replaced by the neoplastic growth, except for a few seminiferous tubules randomly scattered throughout the mass. |
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| However, we detected no differences between tubules microperfused with prorenin or left untreated in the realkalinization rates after washing out the NH 4 Cl prepulse. |
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| Two of the affected seminiferous tubules contain numerous macrophages phagocytosing sperm, whereas only a few remaining spermatogonia can be identified. |
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| One theory holds that uric acid in fat body is transported via the Malpighian tubules to the hindgut, where it undergoes anaerobic digestion by uricolytic bacteria. |
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| The structural basis for the SSC niche in the mammalian testis is the basal compartment of the seminiferous tubules and omposed of sertoli cells and peritubular myoid cells. |
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| The repopulation index is the percentage of tubules populated with germ cells that had clearly reached the intermediate spermatogonial stage or later. |
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