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肿瘤和静水压力有什么区别

August 30, 2021Posted bySamanthi博士

这关键区别between oncotic and hydrostatic pressureis that oncotic pressure is a form of pressure that is exerted by proteins either inblood plasmaor间质流体,而静水压力是一种压力形式,由血浆和毛细管壁上的间隙流体施加。

毛细管动力学在发生在微循环中非常重要毛细血管.根据燕八哥的原则,小鬼ortant forces modulating capillary dynamics. These forces are oncotic or colloid osmotic pressure and hydrostatic pressure. The net filtration pressure is determined by the sum of these forces. Oncotic pressure pushes fluid into the blood capillaries, whereas hydrostatic pressure pushes fluid out of the blood capillaries. Therefore, both oncotic and hydrostatic pressure determine the fluid flow into and out of the blood capillaries.

CONTENTS

1。概述和关键差异
2。What is Oncotic Pressure
3。What is Hydrostatic Pressure
4。Similarities – Oncotic and Hydrostatic Pressure
5.Oncotic vs Hydrostatic Pressure in Tabular Form
6.Summary – Oncotic vs Hydrostatic Pressure

什么是肿瘤压力?

肿瘤压力是一种压力形式,蛋白质在血浆或间质性液中施加。这也是将液体推入血液毛细血管的力。肿瘤压力主要取决于血液蛋白,例如白蛋白。大约75%的血浆肿瘤压力是由于白蛋白引起的。它也称为胶体渗透压。大蛋白在人血浆中施加的肿瘤压力的正常值为26至28 mmHg。通常,当血浆中的水分子从血管中移位时,它会产生相对的水分子不足。因此,水分子在毛细血管的较低静脉压力端内移回了循环系统,从而产生了巨大的压力。

肿瘤和静水压力 - 并排比较

Figure 01: Oncotic Pressure

此外,肿瘤压力具有静液压血压的相反作用。肿瘤压力导致间质流体运动进入血液毛细血管。通常,间质液含有代谢废物和CO2.Hence, oncotic pressure helps the removal of metabolic wastes from tissues.

What is Hydrostatic Pressure?

静液压是血浆和间质流体在毛细管壁上施加的压力形式。实际上,正是将液体从血液毛细血管中推出的力量。这种力有助于将液体从血液毛细血管转移到间质液。这种压力有助于过滤。此外,静水压力在小动脉端最高,在静脉端最低。通常,在毛细血管的动脉端,静水压力为30 mmHg。当血液沿毛细管移动时,流体通过毛细管毛孔移出到间隙空间。因此,当血液从动脉到静脉端移动时,该运动会导致血液施加的压力降低。

Oncotic vs Hydrostatic Pressure in Tabular Form

图02:静水压力

此外,净过滤取决于血液毛细血管中的静水压力和间质液的渗透压。当存在高压差时,可以观察到高过滤压力。这将促进跨毛细血管的适当过滤。

肿瘤和静水压力之间有什么相似之处?

  • Both hydrostatic and oncotic pressure help the movement of fluid in and out of the blood capillaries.
  • 静水压力和肿瘤压在毛细血管的微循环中。
  • 这y are important forces in Starling’s principle involved in capillary dynamics.
  • Dysregulation of both can cause diseases.

肿瘤和静水压力有什么区别?

肿瘤压力是蛋白质在血浆或间质性液中施加的压力形式,而静水压力是毛细血管壁上血浆和间质液施加的压力形式。因此,这是肿瘤和静水压力之间的关键区别。此外,肿瘤压力是将液体推入血液毛细血管的力,而静水压力是将液体从血液毛细血管中推出的力。

这below infographic lists the differences between oncotic and hydrostatic pressure in tabular form for side by side comparison.

Summary – Oncotic vs Hydrostatic Pressure

Oncotic and hydrostatic pressure together determine the fluid flow in and out of blood capillaries. Among them, the oncotic pressure is the force that pushes fluid into the blood capillaries, while the hydrostatic pressure is the force that pushes fluid out of the blood capillaries. Thus, this is the key difference between oncotic and hydrostatic pressure.

参考:

1。“肿瘤压力。”概述|ScienceDirect主题。
2.“”Hydrostatic Pressure。”概述|ScienceDirect主题。

图片提供:

1。“2108 Capillary Exchange” By OpenStax College – Anatomy & Physiology,连接网站, Jun 19, 2013.(CC由3.0)via Commons Wikimedia
2.“”沿毛细管长度的静水压力和蛋白质渗透压”大卫·纳斯卡里(David Nascari)和艾伦(Alan Sved) - 自己的作品(CC BY-SA 4.0)via Commons Wikimedia

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关于作者:Samanthi博士

Samanthi博士Udayangani holds a B.Sc. Degree in Plant Science, M.Sc. in Molecular and Applied Microbiology, and PhD in Applied Microbiology. Her research interests include Bio-fertilizers, Plant-Microbe Interactions, Molecular Microbiology, Soil Fungi, and Fungal Ecology.

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