coronary vasculature

Question 1

What are the major ateries of the heart?

Answer 1

Right coronary artery

left coronary artery

Question 2

Where does the right coronary artery arise?

Answer 2

sinus of the right aortic valve leaf

Question 3

From where does the left coronary artery arise?

Answer 3

sinus of the left aortic leaf

Question 4

What are the branches of the right coronary artery?

Answer 4

SA nodal branch
marginal branch
posterior intervetricular artery (posterior descending artery)
AV nodal artery

Question 5

Where does the SA node branch normally branch from?

Answer 5

right coronary artery

sometime from circumflex A

Question 6

What is the course of the Right marginal branch?

Answer 6

inferior margin of the heart supplying the right ventricle

Question 7

What is the course of Posterior IV artery?

Answer 7

posterior and inferior surface of IV sulcus

supplies 25% of IV septum parts of right and left ventricle

Question 8

What is the course of AV nodal artery?

Answer 8

can rise from either R. coronary (most common) or the circumflex artery projects superiorly toward the inter ventricular sulcus

Question 9

What are the branches of the left coronary artery?

Answer 9

Anterior IV artery (left anterior descending branch)
circumflex artery
marginal artery

Question 10

What is the course of the anterior IV artery?

Answer 10

largest artery of the heart; supplies ~ 75% if interventricular septum, including conducting system contained within and large portions of the right and left ventricles. Includes a named diaganol branch (left anterior descending artery).

Question 11

What is the course of the left marginal artery?

Answer 11

large artery supplying the edge of the left ventricle. May arise from the anterior ventricular a., circumflex a., or directly from the left coronary a.

Question 12

What is the left dominate pattern?

Answer 12

pattern (less common) — right coronary a. is small, circumflex a. is large. In this pattern, the posterior interventricular area is supplied by the circumflex a. rather then the coronary a.

Question 13

What are the coronary veins?

Answer 13

Great cardiac
Middle cardiac vein
Small cardiac vein
Coronary sinus 
Anterior cardiac vv.

Question 14

What separates the atria from the ventricles?

Answer 14

coronary sulcus

Question 15

what is the course of the Great cardiac vein?

Answer 15

also called the anterior inter ventricular vein
starts at the apex runs in the inter ventricular groove turns left to the coronary sulcus turns into coronary sinus
associated with LAD artery

Question 16

What is the course of the middle cardiac vein?

Answer 16

also known as the posterior interventricular ascends posterior inter ventricular groove to coronary sinus
associated with the PDA

Question 17

What is the course of the small cardiac vein?

Answer 17

found between the right atrium and right ventricle below coronary sulcus. goes to the right and meets the coronary sinus

Question 18

What is the course of the posterior cardiac vein?

Answer 18

found to the left of middle cardiac vein. joins great cardiac vein or enters coronary sinus directly

Question 19

What is the course of he coronary sinus?

Answer 19

continuation of the great cardiac vein, starts under the left atrium in the coronary sulcus enters right atrium into SVC

Question 20

what is the course of the anterior veins of right ventricle (anterior veins)?

Answer 20

start on the surface of the right ventricle crosses the coronary sulcus into right atrium wall. drains right ventricle

Question 21

What are the venue cordis minimae?

Answer 21

veins of thebesius AKA drain directly into the right atrium and right ventricle

Question 22

Where does the right atrium receive blood from?

Answer 22

SVC 
IVC 
coronary sinus 
anterior cardiac veins 
veins of thebesius (venue cordis minimae)