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所在平台: Udemy |
课程主页: https://www.udemy.com/course/learn-cardiac-physiology/
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**课程概述：** 本课程深入探讨了心脏生理学的核心概念，重点研究心脏在健康状态下的功能，包括血液流动、心肌结构、心脏的电传导系统、心动周期、心输出量以及它们之间相互作用和依赖关系。 **核心内容：** * **心脏的双泵功能：** 解释了心脏如何作为双泵在心血管系统中运作，维持全身血液的持续循环，包括体循环和肺循环。 * **血液循环：** 阐述了肺循环（从肺部收集氧气并排出二氧化碳）和体循环（将氧气输送到全身并带回缺氧血液和二氧化碳）的特点。 * **血流方向与瓣膜：** 描述了血液流经心脏的方向（心房流向心室），以及通过三尖瓣、二尖瓣、主动脉瓣和肺动脉瓣等瓣膜防止血液回流的机制。 **课程要点：** 1. **心肌特性：** 学习心肌的独特特征。 2. **心肌动作电位：** 掌握心肌动作电位的各个阶段及其涉及的离子通道。 3. **电解质对心肌的影响：** 了解血清钙和钾水平异常对心肌功能的影响。 4. **心输出量：** 定义心输出量并介绍其计算方法。 5. **影响心输出量的因素：** 分析影响心输出量的各种因素。 6. **短时血压调节：** 解释维持血压的神经机制（短期调节）。 7. **心血管调节中枢：** 深入了解延髓中的心血管调节中枢。 8. **长时血压调节：** 简述血压的长期调节机制。 9. **循环系统功能：** 列举循环系统所承担的各种功能。 10. **血流、血压与阻力关系：** 探索血流、压力和阻力之间的相互关系。 11. **血压定义与正常值：** 定义血压并说明其正常范围。 12. **静脉回流的增强机制：** 介绍骨骼肌泵和呼吸泵如何增加静脉回流。 13. **休克的类型与病理生理：** 学习不同类型的休克及其发病机制。
Cardiac physiology or heart function is the study of the healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle, and cardiac output and how these interact and depend on one another.The heart functions as a pump and acts as a double pump in the cardiovascular system to provide a continuous circulation of blood throughout the body. This circulation includes systemic circulation and pulmonary circulation. Both circuits transport blood but they can also be seen in terms of the gases they carry. Pulmonary circulation collects oxygen from the lungs and delivers carbon dioxide for exhalation. The systemic circuit transports oxygen to the body and returns relatively de-oxygenated blood and carbon dioxide to the pulmonary circuit.[1]Blood flows through the heart in one direction, from the atria to the ventricles, and out through the pulmonary artery into the pulmonary circulation, and the aorta into the systemic circulation. The pulmonary artery (also trunk) branches into the left and right pulmonary arteries to supply each lung. Blood is prevented from flowing backward (regurgitation) by the tricuspid, bicuspid, aortic, and pulmonary valves1)Describe the characteristics of cardiac muscle.2)Enumerate the phases of cardiac action potential and the role of channels involved in it.3)Enumerate the effect of serum calcium and potassium derangements on the heart muscle.4)Define cardiac output and the method of calculating it.5)Describe factors affecting cardiac output6)Explain the various nervous mechanisms to maintain blood pressure (short-term regulation)7)Explain the cardiovascular regulatory center in the medulla.8)Give a short account of long-term regulation of blood pressure.9)Enlist the functions of the circulatory system.10)Describe the relationship between flow, pressure, and resistance.11)Define blood pressure and its normal value.12)Understand the mechanism of skeletal and respiratory pumps to increase venous return.13) Types of shocks and their Pathophysiology
