Arterial supply, Venous and Lymphatic drainage of the heart

Question 1

The heart wall is supllies by which arteries?

Answer 1

left and right coronary arteries and their anastomosing branches.

Question 2

the blood from the heart wall is drained by

Answer 2

the cardiac veins almost entirey into the coronary sinus, which in turn feeds into the right atrium

Question 3

where are the coronary arteries and cardiac veins located?

Answer 3

embedded in the epicardium of the heart wall, usually surrounded by varying amounts of fat

Question 4

what are the grooves of the heart wall?

Answer 4

The atrioventricular (coronary) sulcus, which encircles the heart between the atria and ventricles.
The interventricular sulci lie between the two ventricles

Question 5

where do the LCA AND RCA arise from?

Answer 5

the left and right aortic sinuses

Question 6

in which part of the aorta are the aortic sinuses found

Answer 6

ascending aorta

Question 7

what are the two main branches given off by the RCA?
ADD DIAGRAM

Answer 7

right marginal artery
posterior interventricular artery

Question 8

what are the two main branches given off by the LCA?
ADD DIAGRAM

Answer 8

circumflex artery
anterior interventricular artery

Question 9

The posterior interventricular branch of the RCA anastomoses with which branch of the LCA?

Answer 9

anterior interventricular artery

Question 10

After having given origin to its 2 main branches, the RCA continues towards the left in the coronary groove posteriorly and anastomoses with which branch of the LCA?

Answer 10

circumflex artery

Question 11

The coronary arteries are ‘end arteries’. What is meant by the term ‘end artery’?

Answer 11

An end artery is an artery that is the only supply of oxygenated blood to a portion of tissue.

Question 12

anterior interventricular artery areas of supply

Answer 12

interventricular septum, anterior walls of both ventricles.

Question 13

circumflex artery areas of supply

Answer 13

left atrium and posterior walls of left ventricle

Question 14

marginal artery areas of supply

Answer 14

lateral right side of heart (including right atrium).

Question 15

posterior interventricular artery areas of supply

Answer 15

posterior right ventricular walls

Question 16

what do the cardiac veins do?

Answer 16

carry blood with a poor level of oxygen, from the myocardium to the right atrium

Question 17

most of the blood of the coronary veins returns to the right atrium through the…

Answer 17

coronary sinus

Question 18

which heart veins go into the coronary sinus?

Answer 18

great cardiac vein, middle cardiac vein, small cardiac vein.

Question 19

which heart veins go directly into the right atrium?

Answer 19

anterior cardiac veins, smallest cardiac veins (Thebesian veins).

Question 20

the great cardiac vein lies alongside which artery?
ADD DIAGRAM

Answer 20

anterior interventricular artery in the anterior interventricular groove

Question 21

What is 4 and name the area of the body drained by the structure.

Answer 21

Thoracic duct and whole body except the right upper quadrant

Question 22

What are the main branches of the abdominal aorta?

Answer 22

Common iliac arteries
External iliac arteries
Internal iliac arteries

Question 23

What is the course of the common iliac arteries

Answer 23

Arise at the vertebral level L4 and lie in iliac fossae. They are the terminal branches of the abdominal aorta.

Question 24

What is the course of the external iliac arteries?

Answer 24

Arise from the common iliac arteries at vertebral level L5 and become the femoral arteries in the thigh.

Question 25

What is the course of the internal iliac arteries?

Answer 25

Arise from the common iliac arteries at vertebral level L5 and supply pelvic viscera.

Question 26

What structures do the internal thoracic arteries and their branches supply?

Answer 26

Internal intercostal muscles
Breast
Fibrous pericardium
Parietal pleura
Diaphragm

Question 27

Venous drainage of the anterior chest wall:

Answer 27

The internal thoracic vein drains the anterior intercostal veins to the left and right brachiocephalic veins.

Question 28

Venous drainage of the posterior chest wall

Answer 28

The azygous venous system drains blood from the posterior intercostal veins to the SVC.