Module 3: External Cardiac Anatomy Flashcards
The base of the heart contains the
great vessels
What are the ‘great vessels’ of the heart
Inferior vena cava (IVC)
Superior vena cava (SVC)
Pulmonary arteries
Pulmonary veios
Aorta
What are the three great vessels of the aorta?
left subclavian artery
left common carotid artery (CCA)
innominate artery (also known as the brachiocephalic artery)
Which of the great vessels brings blood back to the heart?
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.
The myocardium requires its own blood supply. This is achieved with
the coronary arteries, located on the outside of the heart
The coronary arteries arise from the
sinuses of Valsalva and travel towards the apex of the heart.
The right coronary artery arises from the
right coronary sinus
The left main coronary artery arises from
the left coronary sinus
The left main coronary artery (LM) originates from the
left sinus of Valsalva
the left sinus of Valsalva, passes between the
main pulmonary artery and the left atrial appendage
Two primary coronary arteries
the right coronary artery (RCA) and the left main coronary artery (LMCA).
Two primary coronary arteries originate from
the root of the aorta
The coronary arteries are major
blood vessels in your body, supplying blood to your heart
The RCA supplies blood to your
right atrium and right ventricle (where deoxygenated blood goes before heading to the lungs).
The LMCA supplies blood to your
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
The LMCA branches supply blood to the other two-thirds of the
interventricular septum (IVS)
Branches of the RCA deliver blood to one-third of the
interventricular septum (IVS), which is the wall between your heart’s two lower chambers
Blood supply to the SA and AV nodes comes from the
LCMA, not the RCA
The left anterior descending coronary artery (LAD) arises from
the bifurcation of the LM and then descends in the anterior interventricular sulcus toward the apex of the heart
The left circumflex coronary artery (LCx) arises from
the bifurcation of the LM and then courses toward the left, in the atrioventricular sulcus and down the posterior surface of the left ventricle
The right coronary artery (RCA) arises from
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.
The coronary veins collect
the de-oxygenated blood after use by the capillary beds of the myocardium
