A and P Test Four - Coronary Circulation and IHD Flashcards

What is the most common cause of death in the United States?

What percentage of patients who undergo surgery in the US have IHD?

Name modifiable risk factors for IHD.

Name three IHD risk factors that aren't modifiable

How does C-reactive protein correlate to heart disease risk?

The myocardial blood supply is derived entirely from what?

In a right-dominant person, name the major coronary blood supplies:

What percentage of people are right-dominant?

What percentage of people are left-dominant?

If a person is left-dominant, how is blood supply different from if the person was right-dominant?

If a person is co-dominant, how does this affect the coronary arteries?

What percentage of people are co-dominant?

Name the aspects of the left coronary artery blood supply.

What comes after the bifurcation of the left coronary artery?

How would you sum up the LAD and circumflex's coronary blood supply?

What are the two options for blood supply of the SA node?

What coronary arteries supply the Bundle of His?

What are the two options for coronary blood supply of the AV node?

What are the anterior papillary muscle of the mitral valve blood supply fed by?

What are the posterior papillary muscles supplied by?

Which is more prone to ischemic dysfunction: the anterior or posterior papillary muscles? Why?

What is the normal resting coronary blood flow?

What are the two sources of blood flow to the muscles of the heart?

What are the subendocardial arteries?

What makes coronary perfusion unique when compared with other organs?

What happens to the left ventricle during contraction in regards to intramyocardial pressures?

What do you know about changes in flow during the cardiac cycle?

When is the Left ventricle mostly perfused? What about the right ventricle?

Coronary blood flow is what percent of total cardiac output?

How do decreases in diastolic time affect flow?

How is coronary perfusion determined?

In terms of myocardial blood flow, which is more important, aortic diastolic pressure or mean arterial pressure?

What is the formula for calculating coronary perfusion pressure?

Name the factors that control the demand of coronary blood flow.

What is the most important determinant of myocardial blood flow?

What percentage of oxygen does the myocardium extract? How does this compare to other tissues?

What is the coronary sinus oxygen saturation?

What happens when there is an increase in myocardial metabolic demand?

Name the vasodilator substances that are released to increase coronary blood flow to the heart.

How does the nervous system contribute to coronary blood flow?

What is the effect of aCh on coronary blood flow?

What do you know about the sympathetic innervation of the heart?

Tell me about the energy supply of the heart.

Tell me about the venous drainage of the heart

What does SAD stand for? What does it refer to?