#biology #Circulatorysystem #CoronaryHeartDisease
Coronary Heart Disease
The coronary arteries
The heart is made of muscle cells that need their own supply of blood to deliver oxygen, glucose and other nutrients and remove carbon dioxide and other waste products.
The blood is supplied by the coronary arteries.
If a coronary artery becomes partially or completely blocked by fatty deposits called ‘plaques’ (mainly formed from cholesterol), the arteries are not as elastic as they should be and therefore cannot stretch to accommodate the blood which is being forced through them - leading to coronary heart disease.
Partial blockage of the coronary arteries creates a restricted blood flow to the cardiac muscle cells and results in severe chest pains called angina.
Complete blockage means cells in that area of the heart will not be able to respire and can no longer contract, leading to a heart attack.
Buildup of plaque in the coronary arteries
Effect of narrowing of arteries
Risk Factors for CHD Table
Diet, Exercise & Coronary Heart Disease
Reducing the risks of developing coronary heart disease
Quit smoking.
Diet - reduce animal fats and eat more fruits and vegetables - this will reduce cholesterol levels in the blood and help with weight loss if overweight.
Exercise regularly - again, this will help with weight loss, decrease blood pressure and cholesterol levels and help reduce stress.
What role does diet play in the management and prevention of coronary heart disease?
How does coronary heart disease differ from other types of heart disease?
What are the risk factors associated with coronary heart disease?
How can regular exercise impact the progression of coronary heart disease?
How do treatments like medication and surgery help manage coronary heart disease?