heart and great vessels - INCOMPLETE Flashcards

coronary arteries: describe the origin, course and main branches of the left and right coronary arteries and discuss the functional consequences of their obstruction in conditions such as ischaemic heart disease

1
Q

what is the more common variation in coronary arteries

A

right dominant coronary artery; posterior interventricular branch arises from right coronary artery; marginal; circumflex

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2
Q

what is the less common variation in coronary arteries

A

left dominant coronary artery; posterior interventricular branch arises from left coronary artery

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3
Q

what is a myocardial infarction

A

blood issue causing ischaemia

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4
Q

what is a cardiac arrest

A

not due to ischaemic - electrical

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5
Q

coronary veins

A

follow arteries, drain into coronary sinus (IVC of heart - bringing back deoxygenated blood from heart)

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6
Q

when are coronary arteries perfused with blood

A

systole - valves shut so blood forced into coronary arteries also

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7
Q

when is blood pushed around coronary arteries

A

diastole - valves open and force blood through arteries

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