Vasculature of the Heart Quiz

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Which vein is the main tributary to the coronary sinus?

Left posterior ventricular vein

Small cardiac vein

Middle cardiac vein

Great cardiac vein (correct)

Which artery determines the coronary dominance?

Circumflex branch

Right marginal artery

Posterior interventricular artery (correct)

Anterior interventricular branch

What causes reduced blood flow to the heart in coronary artery disease?

Hypertension

Pulmonary embolism

Atherosclerosis (correct)

Bronchitis

Which artery passes over the right of the pulmonary trunk and runs along the coronary sulcus before branching?

Right marginal artery Signup and view all the answers

What is the main vein of the heart located on the posterior surface in the coronary sulcus?

Coronary sinus Signup and view all the answers

What is angina pectoris?

Transient pain felt on exercise due to lack of oxygen supplied to the heart Signup and view all the answers

What is the trigger for angina pectoris?

Shortened diastolic period during exercise Signup and view all the answers

What is the consequence of an untreated angina pectoris?

Myocardial infarction Signup and view all the answers

How is a blockage in a coronary artery rapidly identified?

Coronary angiogram Signup and view all the answers

What is the immediate treatment for a coronary artery blockage?

Coronary angioplasty Signup and view all the answers

What role does the coronary angioplasty play in treating a blockage?

Restores blood flow to the myocardium Signup and view all the answers

What is the consequence of a sudden occlusion of an artery?

Infarction and necrosis of the myocardium Signup and view all the answers

How are the ECG leads used in case of a myocardial infarction?

To locate the occluded artery Signup and view all the answers

How are coronary arteries visualized during a coronary angiogram?

Using x-ray based imaging with contrast dye Signup and view all the answers

From where do the coronary arteries arise?

The left and right aortic sinuses within the aorta Signup and view all the answers

What is the function of the aortic sinuses in relation to the coronary arteries?

They allow blood to enter the coronary arteries when the heart is relaxed Signup and view all the answers

What does LCA stand for in relation to the coronary circulation?

Left Coronary Artery Signup and view all the answers

Which artery initially branches to yield the left anterior descending (LAD) artery?

Left Coronary Artery Signup and view all the answers

In ~20-25% of individuals, which artery contributes to the posterior interventricular artery?

Left Circumflex Artery Signup and view all the answers

Which vessel is responsible for supplying and draining the heart?

Coronary Circulation Signup and view all the answers