B4: The Heart

Question 1

Coronary heart disease:

Answer 1

Medical risk factors:
HBP, high cholesterol, diabetes
Lifestyle risk factors:
Smoking, obesity, lack of exercise, alcohol

Smoking leads to HBP and high cholesterol so fatty deposition it formed.
Alcohol leads to HBP and high cholesterol
Genetic factors would be diabetics obesity and HBP

Question 2

How to fix problems with blood flow to the heart

Answer 2

CHD is when contrary arteries that supply oxygenated blood to the heart becomes narrow.
Stents: This is a metal mesh placed in the artery, a tiny ballon is inflated and opens up the stent the balloon is deflated and removed and the stent stays there to open up the artery.
Statins: is medication used by the patient if they are at risk of cardiovascular disease.

Question 3

Describe how the heart processes blood

Answer 3

• blood enters the top chamber of your heart right atrium from the vena cava this is oxygenated blood.
• the blood coming into the left atrium from the pulmonary vein is oxygenated.
• The atria contract together and five blood down into the ventricals and the valves close to stop blood flowing backwards out of the heart
• the right ventical forces deoxygenated blood to the lungs in the pulmonary artery.
• the left ventricle pumps oxygenated blood around the body in the artery aorta.