Ebook Chapter 30-31

Question 1

Coronary perfusion

Answer 1

Muscles of the heart are supplied by the right coronary artery (RCA), left anterior descending artery (LAD), and circumflex artery

Question 2

Blood pumps from RV through the tricuspid valve, pulmonic valve into the ___________artery which bifurcates into the _______.

Answer 2

Main pulmonary artery

Right and left pulmonary arteries

Question 3

The origin of the coronaries is ___________.

Answer 3

At the aortic root just posterior to the valve in the region of the right and left sinuses of Vasalva.

Question 4

LAD usually supplies blood to where?

Answer 4

Anterior left ventricular wall, apex, and a portion of the interventricular septum with oxygenated blood

Question 5

Circumflex artery supplies blood to

Answer 5

The LA and lateral and posterior walls of the LV

Question 6

Right Coronary Artery which branches into the posterior descending artery supplies oxygenated blood to

Answer 6

Portions of the right and left ventricles and the MARGINAL ARTERY, which the marginal artery supplies blood to the RA and some of the RV.

Question 7

The heart itself also has its own venous system which drains into the

Answer 7

Coronary sinus

Question 8

4 major sections of the heart’s conduction system:

Answer 8

SA node, AV node, Bundle of HIS, Purkinje fibers

Question 9

Damage to the intimal layer of coronary arteries can occur with

Answer 9

Lipid deposition or inflammation. Platelet aggregation at these sites contributes to the formation of plaque which form thrombi that can occlude the vessels in various degrees (myocardial infarction).

Question 10

Significantly reduced blood flow to the _________ can cause sharp pain, aka

Answer 10

Myocardium

Angina (to the chest, shoulder, and arm)

Question 11

Left coronary artery starts where

Answer 11

Above the left sinus of Vasalva

Question 12

Right coronary artery starts

Answer 12

Above the right sinus of Vasalva

Question 13

In what groove can you find the main trunk of the coronary arteries and the coronary sinus?

Answer 13

The AV (atrioventricular) groove or Coronary groove

Question 14

The Anterior Posterior Groove has what arteries

Answer 14

The LAD of the L Coronary Artery

Question 15

The Posterior Interventricular Groove has what artery/vein

Answer 15

The Posterior Interventricular descending coronary artery

Middle Cardiac Vein

Question 16

This is more trabeculated than this

Answer 16

RV more trabeculated than LV

Question 17

This is 3x thicker than this

Answer 17

LV 3x thicker than RV

Question 18

RV has four bands, one is great to see on an echo

Answer 18

Parietal band
Setal band
Moderator band - can indicate the RV on an echo
Crista supraventricularis

Question 19

Moderator band indicates what on an echo?

Answer 19

That you’re looking at the RV

Question 20

Mitral valve and Tricuspid valve have leaflets or cusps?

Answer 20

LEAFLETS!

Question 21

Aortic valve and Pulmonic valve have leaflets or cusps?

Answer 21

CUSPS!

Question 22

Visceral layer of pericardium is called the

Answer 22

EPICARDIUM (thin outer layer of heart)

Question 23

This layer lines the inner surface of the heart, can see it on an echo

Answer 23

Endocardium