Cardio

Question 1

After an MI, granulomatous tissue replaces the dead cells with type III collagen but then replaces it with type ___ collagen

Answer 1

type I

Question 2

In a left dominant person, what artery does the AV nodal artery branch from? in a right dominant?

Answer 2

Left dominant = cirvumflex

Right dominant = Right coronary artery

Question 3

from greatest to least, which arteries are most susceptible to atherosclerosis

Popliteal

Carotid

Coronary

Abdominal aorta

Answer 3

Abdominal aorta > Coronary artery > Popliteal artery > Carotid artery

(AC/PC)

Question 4

Where in this volume pressure loop doe valves open and close? Where would you hear the snap from mitral stenosis?

Answer 4

The snap is caused by abrupt halting of leaflet motion during mitral valve OPENING due to fusion of the mitral valve leaflet tips. Therefore, you will hear it at point D or shortly after (not point F)

Question 5

Define myxomatous changes

Answer 5

pathologic weakening of connective tissues