CARDIAC DISEASE

Question 1

blood supply of the heart (3)?

Answer 1

major epicardial coronary arteries

• left anterior descending
• right coronary artery
• circumflex artery

Question 2

what is this major epicardial coronary arteries?

this arises from the bifurcation of the left (main) coronary artery

branches: diagonal and septal perforators
supplies: apex, anterior surface of left ventricle, anterior 1/3 of right ventricle, anterior 2/3 of interventricular septum

Answer 2

left anterior descending (LAD)

Question 3

what is this major epicardial coronary arteries?

branches are the posterior descending artery (80%)

supplies: remainder of anterior right ventricle, posterior right ventricle, adjacent 1/2 posterior wall of left ventricle, posterior 1/3 of interventricular septum

Answer 3

right coronary artery (RCA)

Question 4

what is this major epicardial coronary arteries?

also arises from bifurcation left coronary artery

branches: obtuse marginals
supplies: small portion of the lateral left ventricle

Answer 4

circumflex artery (LCX)

Question 5

blood flow to myocardium occurs during?

Answer 5

diastole

Question 6

this can occur via right and /or left coronary artery disease

Answer 6

left ventricular damage

Question 7

name this example

damaged collagen causing weakness of the leaflets

Answer 7

myxomatous mitral valve disease

Question 8

name this example

nodular calcification in interstitial cells

Answer 8

calcific aortic stenosis

Question 9

name this example

fibrotic thickening

Answer 9

rheumatic heart disease

Question 10

CV dysfunction results from 1+ of 5 principal mechanisms, name them?

Answer 10

failure of the pump
obstruction to flow
regurgitant flow
disorders of cardiac conduction
disruption of the continuity of the circulatory system

Question 11

what is this major epicardial coronary arteries?

supplies: apex, anterior surface of left ventricle, anterior 1/3 of right ventricle, anterior 2/3 of interventricular septum

Answer 11

left anterior descending (LAD)

Question 12

what is this major epicardial coronary arteries?

supplies: remainder of anterior right ventricle, posterior right ventricle, adjacent 1/2 posterior wall of left ventricle, posterior 1/3 of interventricular septum

Answer 12

right coronary artery (RCA)

Question 13

what is this major epicardial coronary arteries?

supplies: small portion of the lateral left ventricle

Answer 13

circumflex artery (LCX)