CIRCULATORY SYSTEMS

What does the LAD ( Left Anterior Descending Artery) supply?

It supplies oxygenated blood to the anterior interventricular septum, anterior wall of the LV, and the cardiac apex

What is the flow through systemic circulation?

Left ventricle → Aorta → Arteries → Capillaries → Veins → Right Atrium

Components of the pulmonary circulation are?

Right Ventricle → Main Pulmonary Artery/Branches → Pulmonary Capillaries → Pulmonary Veins

The 2 main components of the heart circulation are?

Arteries: Aorta, Coronary Arteries

Veins: SVC, IVC, Coronary Sinus, Pulmonary Veins

What does the Aorta do during the heart circulation?

It carries oxygenated blood from the LV to the rest of the body.

When does coronary artery flow occur?

During ventricular systole

What do coronary arteries do?

Supply oxygenated blood to the heart muscles

What percent of humans have the RCA as the dominant artery?

67%

Where does the LCA originate?

From the left sinus of valsava

In what % of cases is the LCA dominant?

About 15%

What is the function of the pulmonary artery?

carries deoxygenated blood from the RV to the lungs

Where does the main pulmonary artery originate from?

The summit of the RV then bifurcates into the Lt & Rt Pulmonary Artery

What makes the pulmonary artery unique?

The only artery that carries deoxygenated blood.

What does the SVC do?

Returns deoxygenated blood from the head and arms to the RA

What does the IVC do?

Returns deoxygenated blood from below the heart (legs and trunk) to the RA.