spermatoblast

简明释义

英[ˈspɜːmətəʊblæst]美[spɜːrˈmætoblæst]

精子细胞

英英释义

单词用法

同义词

反义词

例句

1.The ultrastructural characteristics of spermatocytes and spermatoblast of Tegillarca granosa were studied with transmission electron microscopy (TEM).

用透射电镜研究了泥蚶精母细胞与精细胞的超微结构变化。

2.The ultrastructural characteristics of spermatocytes and spermatoblast of Tegillarca granosa were studied with transmission electron microscopy (TEM).

用透射电镜研究了泥蚶精母细胞与精细胞的超微结构变化。

3.Research indicates that abnormalities in spermatoblast 精原细胞 can lead to infertility in males.

研究表明，spermatoblast 精原细胞 的异常可能导致男性不育。

4.During the developmental stages of male gametes, the presence of spermatoblast 精原细胞 is crucial for proper sperm formation.

在男性配子发育阶段，spermatoblast 精原细胞 的存在对于正确的精子形成至关重要。

5.In the testis, spermatoblast 精原细胞 undergo mitosis to increase their numbers.

在睾丸中，spermatoblast 精原细胞 通过有丝分裂增加数量。

6.Scientists are studying the genetic factors that influence spermatoblast 精原细胞 development.

科学家们正在研究影响 spermatoblast 精原细胞 发育的遗传因素。

7.The transformation from spermatoblast 精原细胞 to mature spermatozoa is a complex process involving several stages.

从 spermatoblast 精原细胞 转变为成熟精子的过程是一个涉及多个阶段的复杂过程。

作文

In the fascinating world of biology, understanding the development of reproductive cells is crucial. One important term that comes up in this context is spermatoblast, which refers to an immature male germ cell that will eventually develop into sperm. The life cycle of a spermatoblast is a remarkable journey that highlights the complexity of human reproduction. The process begins in the testes, where spermatogenesis occurs. This is the formation of sperm cells from precursor cells. The spermatoblast is one of these precursor cells, specifically known as a type of spermatogonium. These cells undergo several stages of division and maturation before they become fully developed spermatozoa. Initially, the spermatogonia undergo mitosis, producing more spermatoblasts. However, some of these cells will enter meiosis, a special type of cell division that reduces the chromosome number by half. This is essential for sexual reproduction, as it ensures that when the sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes. The spermatoblast plays a critical role in this process, as it is the stage at which genetic material begins to be shuffled and recombined, leading to genetic diversity in offspring. As the spermatoblasts continue to mature, they transform into primary spermatocytes, which then undergo the first meiotic division to produce secondary spermatocytes. Each secondary spermatocyte divides again, resulting in four haploid spermatids from each original spermatogonium. These spermatids will undergo further transformation, a process called spermiogenesis, where they shed excess cytoplasm and develop tails, ultimately becoming mature sperm. The significance of the spermatoblast extends beyond just the biological process; it also has implications for understanding male fertility. Any disruption in the development of spermatoblasts can lead to issues such as oligospermia or azoospermia, conditions characterized by low sperm count or absence of sperm, respectively. Research into the factors that affect the health of spermatoblasts is ongoing, as scientists seek to improve fertility treatments and understand the underlying causes of male infertility. Moreover, the study of spermatoblasts can provide insights into evolutionary biology. By examining how these cells develop across different species, researchers can glean information about reproductive strategies and adaptations. For instance, certain species may have evolved unique mechanisms to enhance the viability of their spermatoblasts, ensuring greater reproductive success in their environments. In conclusion, the spermatoblast is a vital component in the complex tapestry of human reproduction. Its development from a simple germ cell to a fully formed spermatozoon illustrates the intricate processes that underpin fertility. Understanding the role of spermatoblasts not only sheds light on male reproductive health but also enriches our knowledge of biological diversity and evolution. As research continues to advance, we can expect to uncover even more about these remarkable cells and their significance in the grand scheme of life.

在生物学的迷人世界中，理解生殖细胞的发展至关重要。在这个背景下，一个重要的术语是spermatoblast，它指的是一种未成熟的雄性生殖细胞，最终将发展成精子。spermatoblast的生命周期是一段非凡的旅程，突显了人类生殖的复杂性。这一过程始于睾丸，在那里发生精子发生。这是从前体细胞形成精子细胞的过程。spermatoblast就是这些前体细胞之一，特别被称为一种精原细胞。这些细胞经历多个分裂和成熟阶段，最终变成完全发育的精子。最初，精原细胞通过有丝分裂产生更多的spermatoblasts。然而，这些细胞中的一些将进入减数分裂，这是一种特殊类型的细胞分裂，使染色体数量减少一半。这对于性生殖至关重要，因为它确保当精子受精卵时，形成的合子具有正确的染色体数量。spermatoblast在这个过程中起着关键作用，因为它是遗传物质开始被打乱和重组的阶段，从而导致后代的遗传多样性。随着spermatoblasts的继续成熟，它们转变为初级精母细胞，随后经历第一次减数分裂，产生次级精母细胞。每个次级精母细胞再次分裂，导致每个原始精原细胞产生四个单倍体精子细胞。这些精子细胞将经历进一步的转变，一个叫做精子发生的过程，在这个过程中，它们会脱去多余的细胞质并发育出尾巴，最终成为成熟的精子。spermatoblast的重要性不仅在于生物过程本身；它还对理解男性生育能力有着重要的意义。任何在spermatoblasts发展中的干扰都可能导致如少精症或无精症等问题，这些情况以低精子计数或缺乏精子为特征。对影响spermatoblasts健康因素的研究正在进行中，因为科学家们寻求改善生育治疗并理解男性不育的潜在原因。此外，对spermatoblasts的研究可以为我们提供进化生物学的见解。通过检查这些细胞在不同物种中的发展，研究人员可以获取有关生殖策略和适应的信息。例如，某些物种可能已经进化出独特的机制来增强其spermatoblasts的生存能力，从而确保在其环境中的更大繁殖成功。总之，spermatoblast是人类生殖复杂织锦中的一个重要组成部分。从简单的生殖细胞发展到完全形成的精子，展示了支撑生育的复杂过程。理解spermatoblasts的作用不仅揭示了男性生育健康，还丰富了我们对生物多样性和进化的知识。随着研究的不断推进，我们可以期待发现更多关于这些非凡细胞及其在生命宏观图景中的重要性的内容。