Module 3: External Cardiac Anatomy

Question 1

The base of the heart contains the

Answer 1

great vessels

Question 2

What are the ‘great vessels’ of the heart

Answer 2

Inferior vena cava (IVC)
Superior vena cava (SVC)
Pulmonary arteries
Pulmonary veios
Aorta

Question 3

What are the three great vessels of the aorta?

Answer 3

left subclavian artery
left common carotid artery (CCA)
innominate artery (also known as the brachiocephalic artery)

Question 4

Which of the great vessels brings blood back to the heart?

Answer 4

Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC)

The two main veins that bring blood back to the heart.

Question 5

The myocardium requires its own blood supply. This is achieved with

Answer 5

the coronary arteries, located on the outside of the heart

Question 6

The coronary arteries arise from the

Answer 6

sinuses of Valsalva and travel towards the apex of the heart.

Question 7

The right coronary artery arises from the

Answer 7

right coronary sinus

Question 8

The left main coronary artery arises from

Answer 8

the left coronary sinus

Question 9

The left main coronary artery (LM) originates from the

Answer 9

left sinus of Valsalva

Question 10

the left sinus of Valsalva, passes between the

Answer 10

main pulmonary artery and the left atrial appendage

Question 11

Two primary coronary arteries

Answer 11

the right coronary artery (RCA) and the left main coronary artery (LMCA).

Question 12

Two primary coronary arteries originate from

Answer 12

the root of the aorta

Question 13

The coronary arteries are major

Answer 13

blood vessels in your body, supplying blood to your heart

Question 14

The RCA supplies blood to your

Answer 14

right atrium and right ventricle (where deoxygenated blood goes before heading to the lungs).

Question 15

The LMCA supplies blood to your

Answer 15

left atrium and left ventricle

This is where oxygenated blood arrives from your lungs before your heart pumps it out to the rest of your body

Question 16

The LMCA branches supply blood to the other two-thirds of the

Answer 16

interventricular septum (IVS)

Question 17

Branches of the RCA deliver blood to one-third of the

Answer 17

interventricular septum (IVS), which is the wall between your heart’s two lower chambers

Question 18

Blood supply to the SA and AV nodes comes from the

Answer 18

LCMA, not the RCA

Question 19

The left anterior descending coronary artery (LAD) arises from

Answer 19

the bifurcation of the LM and then descends in the anterior interventricular sulcus toward the apex of the heart

Question 20

The left circumflex coronary artery (LCx) arises from

Answer 20

the bifurcation of the LM and then courses toward the left, in the atrioventricular sulcus and down the posterior surface of the left ventricle

Question 21

The right coronary artery (RCA) arises from

Answer 21

the right sinus of Valsalva and then courses to the right in the right atrioventricular groove, along the anterior surface to the inferior surface of the heart.

Question 22

The coronary veins collect

Answer 22

the de-oxygenated blood after use by the capillary beds of the myocardium