The heart for us is just like the (1)___ for a car. If the engine is broken, the car can not work; similarly, without heart beating, a person can not live.In our body, (2)___systemconveys blood through vessels to and from all parts of the body, carrying nutrients and (3)...
What are the functions of the SA and AV nodes in the heart? The Heart's Electrical System: The heart is a muscle that contracts and relaxes rhythmically to pump blood throughout the body. The heart comprises four chambers or "compartments" - two atria and two ventricles. The heart is...
Explain how electric conduction travels through the heart to stimulate the cardiac cycle. What are the three main functions of the circulatory system? The area of the conduction system that initiates the heartbeat is/are ___ How are the anatomical features of the heart involved in the essential...
The heart failure paradigm in which the RAS and sympathetic nerve activity are deeply involved was established in the 1990s [5]. In addition to blood pressure reduction, RAS suppression has an organ-protecting effect in heart failure treatment, and it is one of the most important drugs among ...
30、r: A team leader is the heart of the team. He / She guides the way for the rest of the group.(队长/组长)2. Team Maven: All strong teams need individuals who are highly focused on knowledge both acquiring and sharing it.(行家里手/内行)3. Team Realist: While enthusiasm and soar...
Heart disease, or cardiovascular disease, is a wide term for aseries of health problemsthat interfere with the way the heart functions. Some causes of heart disease are genetic, but most develop over time. The most common kind of heart disease in the US iscoronary artery disease, ...
What are arteries? Read an artery definition, learn about major arteries and how arteries function, and understand the dangers of hardening of the...
7. What is the man going to do after the conversation? A. Call up the woman for her address. B. Wait for the woman to call him again. C. Mail the woman some information. D. Wait for the woman to pick up a form. Questions 8 to 10 are based on the following conversation. At ...
To start with, physical activity increases the efficiency of your heart and lungs.During exercise, your heart and lungs must work harder.This extra effort makes them grow stronger over the long term. 【拓展】 in the short term从短期...
Cardiovascular is made up of the two wordscardio, meaning or relating to the heart, andvascular, pertaining to blood vessels. Your cardiovascular system, therefore, is comprised of your heart and blood vessles, and it is critical for the overall function of your body. ...