sperm

简明释义

英[spɜːm]美[spɜːrm]

n. 精子；精液；鲸蜡油

复 数 s p e r m 或 s p e r m s

英英释义

单词用法

同义词

反义词

例句

1.It takes about 175, 000 sperm cells to weigh as much as a single egg cell.

一个卵细胞的重量相当于约175 000个精细胞的重量。

2.On this butterfly egg, the lacy pattern marks the micropyle, where sperm enters.

在这种蝴蝶卵上，花边图案标记精子进入的卵孔。

3.Its close relative, the Colossal Squid, may grow too much greater sizes, as evidenced by the size of sucker marks on sperm whales.

它的近亲，大王乌贼可能长得更大，抹香鲸身上的吮吸痕迹就是证据。

4.The objective is to evaluate the role of sperm kinematic parameters in the hyperactivation of Guinea pig spermatozoa.

目的是评估精子运动学参数在豚鼠精子过度激活中的作用。

5.Sperm whales, which spend more time than other species at the surface, were also vulnerable.

抹香鲸待在水面上的时间比其他种类的鲸鱼都要长，所以也很容易被晒伤。

6.The sperm fuses with the egg to begin the process of fertilization.

精子与卵子结合开始受精过程。

7.The male sperm fertilizes the female egg.

雄性的精子使雌性的卵子受精。

8.Conception occurs when a single sperm fuses with an egg.

当一个精子和一个卵子结合时受孕就发生了。

9.Britain also faces a shortage of sperm donors, but the issue there is not compensation.

英国也面临着捐精荒，但那儿的问题不是补偿的事。

10.The doctor explained that the quality of sperm 精子 can be affected by lifestyle choices.

医生解释说，精子 sperm 的质量可能会受到生活方式选择的影响。

11.Men are advised to avoid excessive heat to protect their sperm 精子 production.

建议男性避免过度热量以保护他们的精子 sperm 生产。

12.Some studies suggest that diet can improve sperm 精子 health.

一些研究表明，饮食可以改善精子 sperm 健康。

13.The fertility clinic tests the sperm 精子 for motility and morphology.

生育诊所测试精子 sperm 的活动性和形态。

14.In vitro fertilization often involves collecting sperm 精子 from a donor.

体外受精通常涉及从捐赠者那里收集精子 sperm。

作文

The study of human reproduction is a fascinating and complex field that encompasses various biological processes. One of the most critical components of this process is the role of the male gamete, commonly known as sperm. In simple terms, sperm (精子) are the reproductive cells produced by males that are essential for fertilization. Understanding the biology of sperm is crucial not only for reproductive health but also for advancements in fertility treatments and understanding genetic inheritance.To begin with, sperm production occurs in the male reproductive system, specifically within the testes. This process, known as spermatogenesis, involves the transformation of precursor cells into mature sperm (精子). It is a highly regulated process that takes approximately 64 to 72 days to complete. Once produced, sperm are stored in the epididymis, where they mature and gain the ability to swim, which is vital for their journey toward the egg.The anatomy of a sperm (精子) cell is quite unique. Each sperm consists of three main parts: the head, midpiece, and tail. The head contains the nucleus, which houses the genetic material that will combine with the female egg's genetic material during fertilization. The midpiece is packed with mitochondria, which provide the energy necessary for the sperm (精子) to propel itself. Finally, the tail, or flagellum, is responsible for the motility of the sperm, allowing it to swim through the female reproductive tract to reach the egg.Fertilization occurs when a sperm (精子) successfully penetrates the outer layer of an egg, leading to the fusion of their genetic materials. This event marks the beginning of a new life, and thus, the health and quality of sperm are paramount. Factors such as lifestyle, diet, age, and environmental influences can significantly impact sperm (精子) quality. For instance, studies have shown that smoking, excessive alcohol consumption, and obesity can lead to decreased sperm count and motility, which in turn can affect fertility.In recent years, advancements in reproductive technology have shed light on the importance of sperm (精子) in assisted reproductive techniques such as in vitro fertilization (IVF). In IVF, healthcare professionals often analyze sperm quality to select the healthiest ones for fertilization. This selection process is crucial because the quality of the sperm can directly influence the success rate of the procedure.Moreover, understanding sperm (精子) genetics has opened new avenues for research into hereditary diseases. Genetic testing of sperm can help identify potential genetic disorders that may be passed on to offspring, allowing prospective parents to make informed decisions about family planning.In conclusion, the significance of sperm (精子) in human reproduction cannot be overstated. From its production to its role in fertilization, understanding sperm is essential for both reproductive health and the advancement of medical technologies. As research continues to evolve, the knowledge surrounding sperm will undoubtedly lead to better outcomes in fertility treatments and a deeper understanding of genetics.

人类生殖的研究是一个迷人而复杂的领域，涉及各种生物过程。其中一个最关键的组成部分是雄性配子的角色，通常称为sperm。简单来说，sperm（精子）是男性产生的生殖细胞，对于受精至关重要。理解sperm的生物学不仅对生殖健康至关重要，也有助于生育治疗的发展和遗传继承的理解。首先，sperm的生产发生在男性生殖系统中，特别是在睾丸内。这个过程称为精子发生，涉及前体细胞转化为成熟的sperm（精子）。这是一个高度调节的过程，通常需要大约64到72天才能完成。一旦产生，sperm会储存在附睾中，在那里成熟并获得游动能力，这对它们向卵子的旅程至关重要。sperm（精子）细胞的解剖结构非常独特。每个sperm由三个主要部分组成：头部、中段和尾巴。头部包含细胞核，其中包含将在受精过程中与雌性卵子的遗传物质结合的遗传物质。中段充满线粒体，为sperm（精子）提供推动力所需的能量。最后，尾巴或鞭毛负责sperm的运动，使其能够在女性生殖道中游动以到达卵子。受精发生在一个sperm（精子）成功穿透卵子的外层时，导致它们的遗传物质融合。这一事件标志着新生命的开始，因此，sperm的健康和质量至关重要。生活方式、饮食、年龄和环境因素等因素可以显著影响sperm（精子）的质量。例如，研究表明，吸烟、过量饮酒和肥胖可能导致sperm数量和运动能力下降，从而影响生育能力。近年来，生殖技术的进步使人们更清楚地认识到sperm（精子）在辅助生殖技术（如体外受精，IVF）中的重要性。在IVF中，医疗专业人员通常会分析sperm的质量，以选择最健康的用于受精。这一选择过程至关重要，因为sperm的质量可以直接影响该程序的成功率。此外，了解sperm（精子）遗传学为研究遗传疾病开辟了新的途径。对sperm进行基因测试可以帮助识别可能传给后代的潜在遗传疾病，使未来的父母能够对家庭规划做出明智的决定。总之，sperm（精子）在人类生殖中的重要性不容小觑。从其生产到在受精中的角色，理解sperm对生殖健康和医学技术的进步至关重要。随着研究的不断发展，围绕sperm的知识无疑将导致生育治疗的更好结果以及对遗传学的更深入理解。