phagocytes

简明释义

英[ˈfæɡəsaɪts]美[ˈfeɪɡəˌsaɪts]

n. [细胞]吞噬细胞（phagocyte 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.There are 2 types of phagocytes: mononuclear phagocytes and granulocytes.

有2种吞噬细胞：单核吞噬细胞和粒细胞。

2.The principal function of phagocytes is to defend against invading microorganisms by ingesting and destroying them, thus contributing to cellular inflammatory responses.

吞噬细胞的主要功能是将入侵微生物吞噬并加以摧毁，推动细胞的炎症反应。

3.Eosinophils, while having a role as phagocytes, also have more specific functions that include providing a defense against metazoan parasites and modulating the inflammatory process.

嗜酸性粒细胞具有吞噬细胞的作用，也有更多的具体功能：包括对抗寄生虫和调节炎症过程。

4.Brucella SPP are the facultative intracellular pathogens with the ability to survive and multiply in phagocytes, and they can cause abortion of pregnant domestic animals and undulant fever in humans.

目的布鲁氏菌是兼性细胞内寄生菌，能够在吞噬细胞内长期存活并繁殖，引起家畜流产和人的波浪热。

5.Brucella SPP are the facultative intracellular pathogens with the ability to survive and multiply in phagocytes, and they can cause abortion of pregnant domestic animals and undulant fever in humans.

目的布鲁氏菌是兼性细胞内寄生菌，能够在吞噬细胞内长期存活并繁殖，引起家畜流产和人的波浪热。

6.Some evidence suggests that neutrophils continue to act as phagocytes in the infant's gut.

一些证据表明，嗜中性粒细胞持续充当婴儿肠道内的噬菌细胞。

7.Neutrophils are one of the first types of phagocytes to respond to infection.

中性粒细胞是最先对感染作出反应的吞噬细胞之一。

8.The primary function of phagocytes is to clear debris and dead cells from the body.

吞噬细胞的主要功能是清除体内的碎片和死细胞。

9.The immune system relies on phagocytes to engulf and destroy pathogens.

免疫系统依赖于吞噬细胞来吞噬和消灭病原体。

10.During an infection, the number of phagocytes in the bloodstream increases significantly.

在感染期间，血液中吞噬细胞的数量显著增加。

11.Macrophages are a type of phagocytes that play a crucial role in the immune response.

巨噬细胞是一种在免疫反应中发挥重要作用的吞噬细胞。

作文

The human body is an intricate system composed of various cells that work together to maintain health and fight disease. Among these cells, one of the most crucial types is the phagocytes, which play a vital role in the immune response. The term phagocytes refers to a type of white blood cell that is capable of engulfing and digesting cellular debris, foreign substances, and pathogens. This process is known as phagocytosis, and it is essential for protecting the body against infections and diseases.When a pathogen, such as a bacterium or virus, enters the body, it poses a threat. The immune system quickly activates, and phagocytes are among the first responders. These cells can be likened to the body's defense soldiers, patrolling the bloodstream and tissues to identify and eliminate harmful invaders. They recognize pathogens through specific receptors on their surface, which allows them to bind to and ingest the foreign particles.Once a phagocyte engulfs a pathogen, it encloses it in a vesicle called a phagosome. This vesicle then fuses with lysosomes, which contain powerful enzymes that break down the engulfed material. The destruction of pathogens not only helps clear infections but also plays a significant role in the overall maintenance of tissue health by removing dead or damaged cells.There are several types of phagocytes, including neutrophils, macrophages, and dendritic cells. Neutrophils are often the first to arrive at the site of infection and are particularly effective against bacteria. Macrophages, on the other hand, have a longer lifespan and can engulf larger particles. They also play a crucial role in alerting the rest of the immune system by presenting pieces of the pathogens they consume to other immune cells. Dendritic cells serve a similar function, acting as messengers between the innate and adaptive immune systems.The importance of phagocytes in maintaining health cannot be overstated. Without these cells, our bodies would be vulnerable to a multitude of infections and diseases. In some cases, however, phagocytes may become dysfunctional or insufficient in number, leading to increased susceptibility to infections. This can occur due to various factors, including genetic disorders, malnutrition, or certain medications that suppress the immune system.Moreover, the study of phagocytes has significant implications for medical research and treatment strategies. Understanding how these cells function and interact with other components of the immune system can lead to new therapies for infectious diseases, cancer, and autoimmune disorders. For example, enhancing the activity of phagocytes could improve the body's ability to fight off infections, while inhibiting their action might be beneficial in cases where the immune system is attacking the body's own tissues.In conclusion, phagocytes are essential players in the immune system, acting as the first line of defense against pathogens. Their ability to engulf and digest harmful substances is critical for maintaining health and preventing disease. As research continues to evolve, our understanding of phagocytes will undoubtedly lead to innovative approaches in medicine, ultimately improving patient outcomes and enhancing our ability to combat various health challenges.

人体是一个复杂的系统，由各种细胞组成，这些细胞共同工作以维持健康并抵抗疾病。在这些细胞中，最重要的一类是吞噬细胞，它们在免疫反应中发挥着至关重要的作用。术语吞噬细胞指的是一种能够吞噬和消化细胞残骸、外来物质和病原体的白血球。这一过程称为吞噬作用，对于保护身体免受感染和疾病至关重要。当病原体（如细菌或病毒）进入体内时，就会构成威胁。免疫系统迅速激活，吞噬细胞是最早响应的细胞之一。这些细胞可以被比作身体的防御士兵，巡逻血液和组织，以识别和消灭有害入侵者。它们通过表面特定受体识别病原体，使其能够结合并摄取外来颗粒。一旦吞噬细胞吞噬了病原体，它就会将其包裹在一个称为吞噬体的囊泡中。这个囊泡随后与含有强大酶的溶酶体融合，分解被吞噬的物质。病原体的破坏不仅有助于清除感染，还在整体维护组织健康中发挥重要作用，去除死亡或受损的细胞。吞噬细胞有几种类型，包括中性粒细胞、巨噬细胞和树突状细胞。中性粒细胞通常是最早到达感染部位的细胞，对抗细菌特别有效。巨噬细胞则寿命较长，能够吞噬更大的颗粒。它们还通过向其他免疫细胞呈递所摄取的病原体片段，在警示免疫系统的其他部分方面发挥着至关重要的作用。树突状细胞具有类似功能，作为先天免疫系统和适应性免疫系统之间的信使。吞噬细胞在维持健康方面的重要性不容小觑。如果没有这些细胞，我们的身体将容易受到多种感染和疾病的侵袭。然而，在某些情况下，吞噬细胞可能会功能失常或数量不足，导致对感染的易感性增加。这可能由于多种因素引起，包括遗传疾病、营养不良或抑制免疫系统的某些药物。此外，对吞噬细胞的研究对医学研究和治疗策略具有重要意义。了解这些细胞的功能及其与免疫系统其他组成部分的相互作用，可以为感染性疾病、癌症和自身免疫疾病的新疗法提供新的思路。例如，增强吞噬细胞的活性可能提高身体抵御感染的能力，而抑制其作用可能在免疫系统攻击自身组织的情况下是有益的。总之，吞噬细胞是免疫系统的重要参与者，充当抵御病原体的第一道防线。它们吞噬和消化有害物质的能力对于维持健康和预防疾病至关重要。随着研究的不断发展，我们对吞噬细胞的理解无疑将推动医学中的创新方法，最终改善患者的预后，提高我们应对各种健康挑战的能力。