標題: Titlebook: Biology of Spermatogenesis and Spermatozoa in Mammals; Sardul S. Guraya Book 1987 Springer-Verlag Berlin Heidelberg 1987 biochemistry.biol [打印本頁] 作者: 深謀遠慮 時間: 2025-3-21 16:32
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals影響因子(影響力)
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals影響因子(影響力)學科排名
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals網絡公開度
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals網絡公開度學科排名
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals被引頻次
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals被引頻次學科排名
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals年度引用
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals年度引用學科排名
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals讀者反饋
書目名稱Biology of Spermatogenesis and Spermatozoa in Mammals讀者反饋學科排名
作者: Mercurial 時間: 2025-3-21 21:29 作者: bisphosphonate 時間: 2025-3-22 01:16 作者: VERT 時間: 2025-3-22 05:54
Spermatids and Spermiogenesisrmiogenesis which ends when the spermatozoa are released from the seminiferous epithelium. After the haploid round spermatids are formed, their nuclear and cytoplasmic components undergo a complex series of morphological, histochemical and biochemical changes ending with the production of highly dif作者: 微枝末節(jié) 時間: 2025-3-22 11:07 作者: 配置 時間: 2025-3-22 13:53 作者: 火海 時間: 2025-3-22 18:36
Headammals including marsupials (Guraya 1965, 1971a, Phillips 1975a, Harding et al. 1979, Sarafis et al. 1981, Holstein and Roosen-Runge 1981, Heath et al. 1983, Gledhill 1986). The spermatozoa of various primate species show, more or less, the same basic configuration of the head, except for some minor作者: 雇傭兵 時間: 2025-3-22 23:44
Neckhe mid-piece (Figs. 55 and 61) (Fawcett and Ito 1965, Zamboni et al. 1971, Fawcett 1975b, Phillips 1975a, Holstein and Roosen-Runge 1981, Sato and Oura 1985). The neck differs clearly from both the head and the tail in certain morphological features of the plasmalemma, a sharp demarcation of its upp作者: 啞劇 時間: 2025-3-23 02:08
Tailcrotubules) surrounded by an inner row of nine evenly spaced doublet microtubules, each with two rows of arms that project towards the adjacent doublet tubule, one row of radial spokes that radiate inwards towards the central pair of microtubules, and an outer ring of nine coarse longitudinal fibres作者: 厚顏無恥 時間: 2025-3-23 07:49
Plasma Membrane and its Surface Componentshe molecular character of its surface is an important determinant of the spermatozoon’s ability to recognize and fuse with the egg (Shapiro 1984, Monroy and Rosati 1983, Peterson et al. 1985, O’Rand et al. 1984) and is the primary determinant of species specificity in fertilization. Therefore, durin作者: Homocystinuria 時間: 2025-3-23 09:41
Sperm Motilitysed in detail in Chap. X. Sperm motility forms one of the most important parameters in assessing the fertility potential of a semen specimen, as immotile human sperm cannot penetrate cervical mucus (Amelar et al. 1980). The type of movement also influences fertilizing capacity as the vigorous beatin作者: 認為 時間: 2025-3-23 16:46 作者: dagger 時間: 2025-3-23 20:15
https://doi.org/10.1007/978-3-642-71638-6biochemistry; biology; biophysics; cell; cells; chemistry; immunology; mammals; microscopy; molecular biology作者: 察覺 時間: 2025-3-24 01:37 作者: FLORA 時間: 2025-3-24 03:01
https://doi.org/10.1007/978-3-540-34489-6e of Sertoli cells. It is characterized by complex morphological and biochemical transformations that lead to the formation of a highly specialized cell, the haploid spermatozoon. The spermatozoa are genetically diverse owing to the meiotic events of gene recombination and chromosome reassortment. T作者: 拱形面包 時間: 2025-3-24 09:47
https://doi.org/10.1007/978-3-540-34489-6uring the postnatal period, the testes mature to perform two functions, one hormonal (e.g. production of testosterone and other sex steroids, which are also well known to be secreted by the foetal testis) and the other production of spermatozoa (spermatogenesis) in the adult. These processes are loc作者: 格子架 時間: 2025-3-24 13:34
https://doi.org/10.1007/978-3-540-34489-6the basal lamina (Figs. 5 and 12). After a series of mitoses, the spermatogonia give rise to the spermatocytes. The spermatogonial cell divisions are usually incomplete. The daughter cells remain interconnected by cytoplasmic bridges. It generally is accepted that mouse spermatogonia undergo six suc作者: 大酒杯 時間: 2025-3-24 17:48
,Medikamente zur Behandlung von E?st?rungen,rmiogenesis which ends when the spermatozoa are released from the seminiferous epithelium. After the haploid round spermatids are formed, their nuclear and cytoplasmic components undergo a complex series of morphological, histochemical and biochemical changes ending with the production of highly dif作者: Dorsal 時間: 2025-3-24 20:01 作者: 易達到 時間: 2025-3-25 02:33
,Psychopharmaka und Fahrtüchtigkeit,e function of carrying genetic material from the male to the oocyte, consists of two principal parts, such as the head and the tail (Fig. 55). The tail consists of four components, such as the neck, mid-piece, principal piece, and end-piece (Phillips 1975a). The cytoplasmic droplet is present in ass作者: 有罪 時間: 2025-3-25 05:10 作者: prostate-gland 時間: 2025-3-25 10:14
Psychopharmaka und Fahrtauglichkeit,he mid-piece (Figs. 55 and 61) (Fawcett and Ito 1965, Zamboni et al. 1971, Fawcett 1975b, Phillips 1975a, Holstein and Roosen-Runge 1981, Sato and Oura 1985). The neck differs clearly from both the head and the tail in certain morphological features of the plasmalemma, a sharp demarcation of its upp作者: 感激小女 時間: 2025-3-25 14:12
https://doi.org/10.1007/978-3-642-29810-3crotubules) surrounded by an inner row of nine evenly spaced doublet microtubules, each with two rows of arms that project towards the adjacent doublet tubule, one row of radial spokes that radiate inwards towards the central pair of microtubules, and an outer ring of nine coarse longitudinal fibres作者: Flounder 時間: 2025-3-25 17:51 作者: 慟哭 時間: 2025-3-25 21:05 作者: Inflated 時間: 2025-3-26 00:55
Overview: 978-3-642-71640-9978-3-642-71638-6作者: reject 時間: 2025-3-26 04:18
,Pers?nlichkeits- und Verhaltensst?rungen,Retzius (1909) described the cytoplasmic droplet in the spermatozoa of various mammals including primates. The cytoplasmic droplet also forms the conspicuous feature of spermatozoa in the marmoset, chimpanzee, and buffalo (Fig. 17) (Guraya 1965).作者: Mangle 時間: 2025-3-26 09:05
Cytoplasmic DropletRetzius (1909) described the cytoplasmic droplet in the spermatozoa of various mammals including primates. The cytoplasmic droplet also forms the conspicuous feature of spermatozoa in the marmoset, chimpanzee, and buffalo (Fig. 17) (Guraya 1965).作者: metropolitan 時間: 2025-3-26 14:27
,Psychopharmaka und Fahrtüchtigkeit,a, including the acrosome, subacrosomal region, perforatorium, post-acrosomal sheath, neck, dense outer fibres of the core of the mid-piece, annulus, principal piece, and end-piece (Elder and Hsu 1981). Silver-staining patterns of spermatozoa have revealed both species-specific and strain-specific differences, especially of the sperm head.作者: 提煉 時間: 2025-3-26 20:31
General Considerationsa, including the acrosome, subacrosomal region, perforatorium, post-acrosomal sheath, neck, dense outer fibres of the core of the mid-piece, annulus, principal piece, and end-piece (Elder and Hsu 1981). Silver-staining patterns of spermatozoa have revealed both species-specific and strain-specific differences, especially of the sperm head.作者: STALE 時間: 2025-3-26 21:24
,Medikamente zur Behandlung von E?st?rungen,okinesis and are known to be accompanied by conspicuous changes in plasma membrane components (Chap. V). Actually, mammalian spermatozoa develop many unusual characteristics at the cell surface, which will be discussed in Chap. X.作者: indubitable 時間: 2025-3-27 04:21 作者: notion 時間: 2025-3-27 06:54 作者: 性上癮 時間: 2025-3-27 12:04
Necka 1985). The neck differs clearly from both the head and the tail in certain morphological features of the plasmalemma, a sharp demarcation of its upper limit by the posterior ring, and lack of continuity between the segmental columns and the outer dense fibres of the tail (Figs. 57 and 63) (Kaczmarski 1978).作者: Lipoprotein(A) 時間: 2025-3-27 14:51
https://doi.org/10.1007/978-3-540-34489-6nsmission and scanning electron microscopy, lectin labelling and binding, histochemistry, autoradiography, biochemistry, quantitative research, biophysics, immunology, etc., which have been applied to the study of germ-cells and Sertoli cells both in vivo and in vitro. It is now possible to culture 作者: 松馳 時間: 2025-3-27 20:54
https://doi.org/10.1007/978-3-540-34489-6differentiation and development of the testes (Wartenberg 1981, Ramaswami 1983), (2) endocrinology of the foetal testis (Faiman et al. 1981), and (3) endocrine control of testicular function from birth to puberty (Swerdloff and Heber 1981). The earliest morphological feature by which the foetal test作者: 玉米 時間: 2025-3-28 01:36
https://doi.org/10.1007/978-3-540-34489-6Schleiermacher and Schmidt 1973, Guraya 1980, Holstein and Roosen-Runge 1981, Kerr and de Kretser 1981). The junctions or desmosome-like structures occur between neighbouring spermatogonia (Holstein and Roosen-Runge 1981).作者: Water-Brash 時間: 2025-3-28 05:53
Medikamente zur Behandlung von Hypersomnien, has not been identified. Proteins that have been purified from testes include some of defined function, e.g. enzymes, and some that play an as yet unknown structural role, e.g. plasma membrane components. Many of the proteins that are formed during spermatogenesis represent potential autoantigens, 作者: 外來 時間: 2025-3-28 07:54 作者: nominal 時間: 2025-3-28 11:59
https://doi.org/10.1007/978-3-642-29810-3al sheath, made up of projections has been described surrounding the two central tubules (Fig. 66). It is connected by nine spokes, radial links to the nine doublets, which are also connected to each other by the inter-doublet links (Fig. 66).作者: Predigest 時間: 2025-3-28 16:36 作者: CANON 時間: 2025-3-28 19:19 作者: paroxysm 時間: 2025-3-28 23:02 作者: calumniate 時間: 2025-3-29 03:40 作者: 漸變 時間: 2025-3-29 10:55
SpermatogoniaSchleiermacher and Schmidt 1973, Guraya 1980, Holstein and Roosen-Runge 1981, Kerr and de Kretser 1981). The junctions or desmosome-like structures occur between neighbouring spermatogonia (Holstein and Roosen-Runge 1981).作者: 表主動 時間: 2025-3-29 12:12 作者: MARS 時間: 2025-3-29 18:53
Headen to extend as far as the apex of the head (Figs. 56 and 57). Scanning electron microscope provides the most ideal method available at present for the study of sperm morphology, especially for reconstructuring an impression of a three-dimensional structure from two-dimensional images (Gould 1980, B作者: 有特色 時間: 2025-3-29 23:14 作者: 溫和女孩 時間: 2025-3-30 03:00
Plasma Membrane and its Surface Componentsal properties of the plasma membrane of spermatozoa and about the regional distribution and density of general classes of compounds or specific activities on cell surfaces. In spite of these advances, our knowledge of membrane organization in spermatozoa is limited. Actually, the spermatozoon plasma作者: Exposition 時間: 2025-3-30 07:57
Sperm Motilitymmalian spermatozoa present within the distal regions of the male reproductive tract show little or no movement in situ, but can become highly motile following their release into suitable salt solutions (Mann 1964, Turner and Howards 1978, Amelar et al. 1980, Mohri and Yanagimachi 1980, Nelson et al作者: Angioplasty 時間: 2025-3-30 09:32
Biology of Spermatogenesis and Spermatozoa in Mammals作者: 減至最低 時間: 2025-3-30 12:38
