Coronary circulation Flashcards

1
Q

When do the coronary arteries arise?

A

immediately superior to the cusps of the aortic valve from the aortic sinuses

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2
Q

Where does the right coronary artery arise from?

A

The right aortic sinus

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3
Q

Where does the left coronary artery arise from?

A

The left aortic sinus

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4
Q

Do any arteries arise from the posterior aortic sinus?

A

No

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5
Q

What does the left coronary artery supply?

A

The left atrium, most of left ventricle, some right ventricle, anterior part of IV septum and SA node

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6
Q

What does the left coronary artery divide into?

A

The anterior interventricular branch and the smaller circumflex branch

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7
Q

What does the anterior interventricular branch travel down?

A

anterior surface of the heart along the interventricular groove towards the apex of the heart

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8
Q

Where does the circumflex branch travel down?

A

Passes along the coronary groove on the left border of the heart

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9
Q

Where does deoxygenated blood get deposited?

A

Coronary sinus

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10
Q

What does the right coronary artery split into?

A

The marginal branch and the ascending sinoatrial node branch

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