2.67 Coronary Heart Disease

Question 1

What do the coronary arteries do?

Answer 1

They are blood vessels that provide the cardiac muscle with oxygen and glucose

Question 2

What leads to coronary heart disease?

Answer 2

Layers of fatty material (plaque) build inside the coronary artery, narrowing the artery and making its walls less elastic. A complete blockage will lead to a heart attack and a partial one will lead to chest pains

Question 3

What are 2 sources of cholesterol?

Answer 3

-Dietary cholesterol from animal products
-Cholesterol synthesized by the liver

Question 4

What factors can lead to an increased chance of coronary heart disease in a human? Explain

Answer 4

-Obesity, Puts more stress on the heart
-High blood pressure, increased force of blood which could damage the artery
-High cholesterol, LDL Cholesterol leads to blocked arteries
-Smoking, causes plaque build up in arteries