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所在平台: Udemy |
课程主页: https://www.udemy.com/course/11th-12th-biology-body-fluid-and-circulation/
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课程名称：生物学：体液与循环 课程概述： 本课程探讨了所有生物细胞如何获取营养、氧气及其他必需物质，并持续排除废物或有害物质，以保持组织的健康功能。因此，必须有效地运输这些物质到细胞及从细胞移除。不同的动物群体发展了不同的运输机制。简单的生物如海绵和腔肠动物通过体腔循环周围的水，以促进细胞之间物质的交流。而更复杂的生物则通过体内特殊的液体进行物质运输。血液是大多数高级生物（包括人类）最常用的体液，此外，淋巴也在某些物质的运输中起到重要作用。本章节将介绍血液和淋巴（组织液）的组成及特性，并解释血液循环的机制。 课程内容： - 循环系统简介 - 人类血液组成1 - 人类血液组成2 - 不同类型的白细胞（颗粒性白血球） - 不同类型的白细胞（非颗粒性白血球） - 血液凝固 - 血管 - 静脉与毛细血管 - 双循环 - 心脏 - 心脏壁 - 心脏的外部结构 - 心脏瓣膜 - 心跳与脉搏 - 血压 - 心脏的传导系统 - 高血压 - 血小板 这些精彩的概念将为您打下坚实的理论基础，并帮助您通过NEET、CET、基础等竞争性考试。
DescriptionYou have learnt that all living cells have to be provided with nutrients, O2 and other essential substances. Also, the waste or harmful substancesproduced, have to be removed continuously for healthy functioning of tissues. It is therefore, essential to have efficient mechanisms for themovement of these substances to the cells and from the cells. Different groups of animals have evolved different methods for this transport. Simple organisms like sponges and coelenterates circulate water from their surroundings through their body cavities to facilitate the cells to exchange these substances. More complex organisms use special fluids within their bodies to transport such materials. Blood is the most commonly used body fluid by most of the higher organisms including humans for this purpose.Another body fluid, lymph, also helps in the transport of certain substances. In this chapter, you will learn about the composition and properties ofblood and lymph (tissue fluid) and the mechanism of circulation of blood is also explained herein.Course ContentCirculatory System (Introduction)Composition of Human blood 1Composition of Human blood 2Different types of Leucocytes (Granulocytes)Different types of Leucocytes (Agranulocytes)Coagulation of BloodBlood VesselsVeins and CapillariesDouble CirculationheartWall of HeartExternal Structure of HeartValves of heartHeart Beat and Pulseblood pressureConducting System of HeartHypertensionplateletsThese are fantastic concepts that will lay a strong theoretical foundation for you and help you with competitive exams like NEET , CET, Foundation
