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Questions and Answers
Which vessel originates from the left sinus of Valsalva?
Which vessel originates from the left sinus of Valsalva?
- Left anterior descending coronary artery (LCA)
- Circumflex coronary artery (Cx)
- Left main coronary artery (LMCA) (correct)
- Right coronary artery (RCA)
What does the right coronary artery primarily supply?
What does the right coronary artery primarily supply?
- Lateral wall of the left ventricle
- Right ventricle and posterior septum (correct)
- Interventricular septum
- Anterior wall of the left ventricle
Which vessel typically supplies the lateral wall of the left ventricle?
Which vessel typically supplies the lateral wall of the left ventricle?
- Left anterior descending coronary artery (LCA)
- Right coronary artery (RCA)
- Circumflex coronary artery (Cx) (correct)
- Left main coronary artery (LMCA)
What is the principal mechanism of metabolic regulation for coronary resistance?
What is the principal mechanism of metabolic regulation for coronary resistance?
Which factor directly affects coronary blood flow according to the text?
Which factor directly affects coronary blood flow according to the text?
What is responsible for autoregulation of coronary resistance?
What is responsible for autoregulation of coronary resistance?
In clinical terms, how many coronary arteries are typically considered despite actual anatomical distinctions?
In clinical terms, how many coronary arteries are typically considered despite actual anatomical distinctions?
Where does the right coronary artery originate from?
Where does the right coronary artery originate from?
During which phase of the cardiac cycle is coronary flow to the left ventricle almost entirely diastolic?
During which phase of the cardiac cycle is coronary flow to the left ventricle almost entirely diastolic?
What happens to myocardial flow during systole?
What happens to myocardial flow during systole?
Which vessels are categorized as resistance vessels in the context of coronary circulation?
Which vessels are categorized as resistance vessels in the context of coronary circulation?
What structures can dramatically change their diameter to regulate the flow through coronary capillaries?
What structures can dramatically change their diameter to regulate the flow through coronary capillaries?
What is the approximate ratio of capillaries to myocytes in the rich network of capillaries in the heart?
What is the approximate ratio of capillaries to myocytes in the rich network of capillaries in the heart?
In pathological narrowing of epicardial conductance arteries, what happens to the endocardial flow in comparison to the epicardial flow?
In pathological narrowing of epicardial conductance arteries, what happens to the endocardial flow in comparison to the epicardial flow?
Which structure eventually empties into the right atrium after receiving coronary veins along with the SA and AV nodes?
Which structure eventually empties into the right atrium after receiving coronary veins along with the SA and AV nodes?
What can dramatically change their diameter in response to numerous stimuli to regulate the flow through coronary capillaries?
What can dramatically change their diameter in response to numerous stimuli to regulate the flow through coronary capillaries?
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