[医学]医学英语视听说+heart+health

Blood Supply To The Heart
Two coronary arteries branch from the main aorta just above the aortic valve. “No larger than drinking straws, they divide and encircle the heart to cover its surface with a lacy network that reminded physicians of a slightly
Heart Disease
A general term that covers a number of diseases which affect the heart, including coronary artery disease, heart-failure and angina.
Mortality
Cholesterol 胆固醇 MI：myocardial infarction 心肌梗塞 TPA: Tissue Plasminogen Activator 组织原
生激活剂
ECG：electrocardiogram Ventricular fibrillation 心室颤动
The Cause of Heart Disease
• The oxygenated blood is pumped to the body to provide oxygen and nutrients and to remove waste products.
• The coronary arteries are the blood vessels that supply blood and oxygen to the heart muscle.
crooked crown (coronary comes from the Latin coronarius,
belonging to a crown or wreath). They carry out about 130 gallons of blood through the heart muscle daily.”
•Nearly 2,600 Americans die of CVD each day, an average of 1 death every 33 seconds.
•CVD claims more lives each year than the next 5 leading causes of death combined, which are cancer, chronic lower respiratory diseases, accidents, diabetes mellitus, influenza and pneumonia.
Parts of the Internal Heart
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The function of the heart is to circulate blood throughout the body by:
• Pumping blood through the lungs removes carbon dioxide and refreshes the blood with oxygen
Hypertension
Atherosclerosis --fatty deposits of cholesterol
Page 86, listen to Cardiovascular disease
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Coronary Artery Disease
近年来，我国心血管病发病率持续上升，每 年有54.4万人心脏性猝死。仅北京地区调查 显示，在最近的15年中，35岁－44岁男性心 肌梗死病死率增加154%。我国心脏病高危险 人群，正从老年人向中年人转移。
•Since 1900, CVD has been the No. 1 killer in the United States every year but 1918.
“Cardiovascular disease (CVD) claimed 39.4 percent of all deaths or 1 of every 2.5 deaths in the United States in 2000. CVD was about 60 percent of “total mention mortality.” This means that of over 2,400,000 deaths from all causes, CVD was listed as a primary or contributing cause on about 1,415,000 death certificates.” (American Heart Disease)
•Almost 150,000 Americans killed by CVD each year are under age 65.
Q&A
What happened to John? What do you think is the reason causing the
heart attack? What’s the diagnosis? What’s the treatment?
医学英语视听说 +heart+health
•Is a muscle about the size of your clenched fist •Weighs approximately one pound •Is located behind and slightly to the left of the breastbone •Pumps about 5 quarts (4.7 liters) of blood every minute