Podcast
Questions and Answers
Which of the following is true about the entry of arterial blood into the coronaries?
Which of the following is true about the entry of arterial blood into the coronaries?
- It occurs when the aorta is constricted.
- It occurs when the aorta is dilated.
- It occurs when the myocardium is contracted (during systole).
- It occurs when the myocardium is relaxed (during diastole). (correct)
During which phase of the cardiac cycle does arterial blood mostly enter the coronaries?
During which phase of the cardiac cycle does arterial blood mostly enter the coronaries?
- Diastole (correct)
- Systole
- Pulse
- Rest
When does the entry of arterial blood into the coronaries primarily occur?
When does the entry of arterial blood into the coronaries primarily occur?
- When the heart is at rest
- When the heart is contracting
- When the heart is relaxing (correct)
- When the heart is beating irregularly
Which blood vessels deliver oxygenated blood to the heart?
Which blood vessels deliver oxygenated blood to the heart?
Where does venous blood from the heart collect before emptying into the right atrium?
Where does venous blood from the heart collect before emptying into the right atrium?
What is the main function of coronary circulation?
What is the main function of coronary circulation?
Study Notes
Coronary Blood Flow
- Arterial blood mostly enters the coronaries during diastole, when the aortic valve is closed and the heart muscle is relaxed.
- The entry of arterial blood into the coronaries primarily occurs during diastole.
- The main function of coronary circulation is to deliver oxygenated blood to the heart muscle.
Blood Vessels and the Heart
- Oxygenated blood is delivered to the heart through the coronary arteries.
- Venous blood from the heart collects in the coronary sinus before emptying into the right atrium.
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Description
Test your knowledge of coronary circulation with this quiz! Learn about how arterial blood from the aorta enters the coronary arteries during diastole, when the myocardium is relaxed.
