Cardiology - Heart Vasculature

Question 1

The most commonly occluded coronary artery

Answer 1

LAD

Question 2

Called the “widow maker” due to the high morality rate associated with it’s infarction

Answer 2

LAD

Question 3

Supplies the heart’s conduction system (sinus and AV nodes)

Answer 3

RCA

Question 4

Stenosis or occlusion of this vessel often leads to cardiac arrhythmias

Answer 4

RCA

Question 5

In left dominant and co-dominant circulation, this vessel gives rise to PDA

Answer 5

left circumflex artery (LCX)

Question 6

In right dominant circulation the PDA arises from this artery

Answer 6

RCA

Question 7

An infarct in leads V1-V6 involve this vessel

Answer 7

proximal LAD

Question 8

An infarct in leads V1-V2 involve this vessel

Answer 8

LAD

Question 9

An infarct in leads V3-V4 involve this vessel

Answer 9

distal LAD

Question 10

An infarct in leads V5-V6 involve this vessel

Answer 10

LCX (or RCA in rare cases)

Question 11

An infarct in leads I, aVL involve this vessel

Answer 11

proximal LCX

Question 12

An infarct in leads II, III, aVF involve this vessel

Answer 12

RCA (most common)
distal LCX (less common)

Question 13

An infarct in leads V7-V9 involve this vessel

Answer 13

posterior descending artery (from RCA or LCX)

Question 14

Infarction of the inferior wall is caused by obstruction of

Answer 14

LCX or RCA or their branches

Question 15

Infarction in the anterior wall is caused by obstruction of

Answer 15

LAD or its branches

Question 16

SAL acronym

Answer 16

S - septal (V1-V2)
A - apical (V3-V4)
L - lateral (V5-V6)