g和肺之间的差异

吉尔斯vs肺

g和肺是为大多数较高动物的呼吸功能提供气体表面的主要组织。鱼类主要具有g，而两栖动物，爬行动物，鸟类和哺乳动物的肺有用于呼吸或气体交换的肺。它主要遵守水生动物有g和陆生动物有肺，但是水生哺乳动物和一些鱼类有肺。本文打算讨论有关形式和功能方面肺和g的最重要和主要差异。

ills

鳃呼吸器官的能力of extracting dissolved oxygen in water, and those are found in evolutionarily higher and complex aquatic animals. However, the microscopic and simple aquatic organisms do not require a gill apparatus to extract oxygen from water, as their body surface can absorb adequate amounts. The structure of a gill is interesting, and it has a filtering system to trap particles other than water while gas exchange takes place. In fishes, the water is taken from the mouth, projected through gills to absorb oxygen, and sent out through the gill slits (cartilaginous fish) or operculum (bony fish). The primary function of a gill involves a counter current system of flowing blood in the gill and water around the gill in opposite directions. In addition, the comb-like filaments of the gill called gill lamellae aids in increasing the surface area of gas exchange. There are slight differences between the gills of bony fish and cartilaginous fish in structure, but the function of extracting oxygen with ventilation of gills is performed in both types. Other vertebrates such as amphibians have externally exposed gills for respiration in their larval stages. The embryonic developmental stages of higher vertebrates such as birds, mammals, and even reptiles possess gills to fulfil the respiration functions inside the womb or egg. Therefore, it could be envisaged that most of the aquatic animals with complex body systems possess gills for their respiration. Moreover, gills in fishes are capable of diffusing excretory products along with the respiratory wastes into the water.

肺

肺是空气呼吸较高的脊椎动物和一些陆地无脊椎动物的主要呼吸表面。然而，脊椎动物在结构上不同，并且更好地适应了与无脊椎动物肺更多的氧气。脊椎动物肺通过鼻腔和口腔接收大气中的氧气，并通过吸入将氧气提取到血液毛细血管中，并在极薄壁的肺泡中扩散二氧化碳，并以同样的方式呼气。在肺部形成数百万个肺泡，以增加气体交换的表面。但是，排泄废物不会通过肺泡的壁扩散。肺部位于哺乳动物的胸腔中，与隔膜的肋间肌肉收缩以增加体积并减轻内部压力，从而进行吸入，并以另一方面的方式进行呼气过程。除了其主要功能呼吸外，肺部对于维持血液的pH值，摆脱不必要的血液凝块，为咽部提供气流，从空气道和许多其他功能提供气流，从而为咽部产生声音，排斥灰尘和其他颗粒，为气流提供气流。

g和肺部有什么区别？ •这两个器官都至关重要，因为气体交换表面，但ill对于在水中提取溶解的氧气很重要，而肺对提取大气中的氧气很重要。 •在水生生物中发现ill，而肺部则在陆地呼吸道动物中发现。 •ill能够扩散排泄物，而不是肺部。 •ill可以是内部或外部器官，而肺只是内部器官。