spermatogenesis

简明释义

英[/spɜrˌmætəˈdʒɛnɪsɪs/]美[/spɜrˌmætəˈdʒɛnɪsɪs/]

n. [胚] 精子发生；精子形成

英英释义

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例句

1.Objective: to introduce the progress of studies on association genes of spermatogenesis impairment.

前言：目的：介绍生精障碍相关基因的研究进展。

2.Results: some genes including several genes on Y chromosome and androgen receptor gene were demonstrated to be associated with spermatogenesis impairment.

结果：Y染色体上的一些基因、雄性激素受体基因等被证实与生精障碍相关。

3.Conclusion:ACR changes spermatogenesis in male rats, but not via the pathway of CYP2E1.

结论：ACR可引起大鼠生精功能的改变，但未观察到CYP2E1在这种改变中的明显作用。

4.Conclusion: The genetic factors of spermatogenesis impairment are complicated and many genes related to spermatogenesis impairment remain to be identified.

结论：生精障碍的遗传因素十分复杂，仍有许多相关基因有待进一步鉴定。

5.Purpose: to study the effects of high energy shock wave on spermatogenesis.

目的：研究高能冲击波对大鼠生精过程的影响作用。

6.As well as it provide a reliable experimental platform for research on changing regularity of endocrine secretion and spermatogenesis of intraabdominal testes after autotransplantation.

为研究高位腹腔隐睾在接受自体移植术后内分泌及生精功能的变化规律提供了可靠的研究平台。

7.As well as it provide a reliable experimental platform for research on changing regularity of endocrine secretion and spermatogenesis of intraabdominal testes after autotransplantation.

为研究高位腹腔隐睾在接受自体移植术后内分泌及生精功能的变化规律提供了可靠的研究平台。

8.Thus, an in vitro system is established that can be used to correct or manipulate the micro-environmental conditions required for proper spermatogenesis from murine SSC lines.

因此，体外体系的建立也能用于修正或改进微环境条件使其满足鼠科动物精原干细胞系的生精发生需求。

9.Conclusion chromosome Karyotypic and Y-chromosome AZF microdeletion analysis are important genetic assays for male spermatogenesis dysfunction.

结论染色体核型分析和Y染色体微缺失是男性生精障碍重要的遗传检测指标。

10.Hormonal imbalances can disrupt normal spermatogenesis.

激素失衡会干扰正常的精子发生。

11.The process of spermatogenesis is crucial for male fertility.

精子发生的过程对男性生育力至关重要。

12.In humans, spermatogenesis occurs in the testes.

在人类中，精子发生发生在睾丸中。

13.Genetic mutations can lead to defective spermatogenesis.

基因突变可能导致缺陷的精子发生。

14.Researchers are studying how environmental factors affect spermatogenesis.

研究人员正在研究环境因素如何影响精子发生。

作文

Spermatogenesis is a crucial biological process that takes place in the male reproductive system. It refers to the development of sperm cells from precursor germ cells through a series of complex stages. Understanding spermatogenesis (精子发生) is essential not only for comprehending male fertility but also for grasping the broader aspects of human reproduction and developmental biology.The process of spermatogenesis begins in the testes, specifically within the seminiferous tubules. Here, spermatogonial stem cells undergo mitosis to produce more spermatogonia, which are diploid cells. These cells then enter a phase of differentiation. Some of them will continue to divide, while others will begin the process of meiosis, which is critical for producing haploid sperm cells.Meiosis consists of two sequential divisions: meiosis I and meiosis II. During meiosis I, homologous chromosomes are separated, resulting in two haploid cells called secondary spermatocytes. Each secondary spermatocyte then undergoes meiosis II, leading to the formation of four haploid spermatids from each original spermatogonium. This significant reduction in chromosome number is vital for sexual reproduction, as it ensures that when a sperm fertilizes an egg, the resulting zygote has the correct diploid number of chromosomes.After meiosis, the spermatids go through a process known as spermiogenesis, where they undergo morphological changes to become mature spermatozoa. This includes the development of a flagellum for motility and the condensation of the nucleus. The transformation of spermatids into sperm is essential for their functionality in fertilization.The entire process of spermatogenesis (精子发生) takes approximately 64 to 72 days in humans, but it is a continuous process, with millions of sperm being produced daily. Hormonal regulation plays a critical role in this process; testosterone, produced by Leydig cells, and follicle-stimulating hormone (FSH), secreted by the pituitary gland, are particularly important in promoting spermatogenesis.Disruptions in spermatogenesis can lead to male infertility, which affects a significant portion of the population. Factors such as hormonal imbalances, environmental toxins, and lifestyle choices can impact this delicate process. Understanding these factors is crucial for developing treatments and interventions for infertility issues.In conclusion, spermatogenesis (精子发生) is a fundamental aspect of male reproductive health. Its complexity highlights the intricate mechanisms involved in the production of sperm, which is vital for reproduction. As research continues to advance, our understanding of spermatogenesis will likely contribute to improved fertility treatments and a deeper insight into human reproductive biology.

精子发生是一个重要的生物过程，发生在男性生殖系统中。它指的是从前体生殖细胞通过一系列复杂阶段发展成精子细胞。理解spermatogenesis（精子发生）不仅对理解男性生育能力至关重要，而且对掌握人类生殖和发育生物学的更广泛方面也是如此。spermatogenesis的过程开始于睾丸，特别是在生精小管内。在这里，精原干细胞通过有丝分裂产生更多的精原细胞，这些细胞是二倍体细胞。这些细胞随后进入分化阶段。其中一些将继续分裂，而另一些则将开始减数分裂的过程，这对于产生单倍体精子细胞至关重要。减数分裂包括两个连续的分裂：减数分裂I和减数分裂II。在减数分裂I期间，同源染色体被分开，导致形成两个称为次级精母细胞的单倍体细胞。每个次级精母细胞然后经历减数分裂II，从每个原始精原细胞中形成四个单倍体精子细胞。这种染色体数目的显著减少对性生殖至关重要，因为它确保当一个精子使卵子受精时，形成的合子具有正确的二倍体染色体数。在减数分裂之后，精子细胞经历一个被称为精子发生的过程，在这个过程中，它们经历形态变化以成为成熟的精子细胞。这包括为运动性发展鞭毛和核的浓缩。精子细胞转变为精子的过程对其在受精中的功能至关重要。整个spermatogenesis（精子发生）过程在人类中大约需要64到72天，但这是一个持续的过程，每天会产生数百万个精子。激素调节在这一过程中起着关键作用；由莱迪希细胞产生的睾酮和由垂体分泌的促卵泡激素（FSH）在促进精子发生中尤其重要。spermatogenesis的中断可能导致男性不育，这影响了相当一部分人群。激素失衡、环境毒素和生活方式选择等因素都可能影响这一微妙的过程。理解这些因素对开发不育问题的治疗和干预至关重要。总之，spermatogenesis（精子发生）是男性生殖健康的基本方面。它的复杂性突显了精子生产中涉及的复杂机制，这对于生殖至关重要。随着研究的不断推进，我们对spermatogenesis的理解可能会有助于改善生育治疗，并深入了解人类生殖生物学。