Cardiovascular System

Blood leaves the left ventricle through an artery known as the ________

aorta

Pulmonary arteries transport

blood rich in carbon dioxide to the lungs

The tiny white cords that anchor the cusps or flaps of endocardium to the walls of the ventricles are called the ______

chordae tendineae

The coronary veins empty blood from the myocardium into a large vein on the posterior side of the heart known as the

coronary sinus

The visceral layer of the serous pericardium is actually the same layer as the ________

epicardium

High pressured blood in the ventricles:

forces the semilunar valves open

The vagus nerve operates under the control of the parasympathetic nervous system and causes the

heart rate to decrease

Pulmonary circulation involves blood flow to and from the heart and the

lungs

The friction blood encounter as it flows through the vessels is called

peripheral resistance

What is the function of the valves in the heart

prevent backflow of blood through the heart

The transportation of blood from the right side of the heart to the lungs and back to the left side of the heart is known as ________ circulation

pulmonary

Large veins have ________ to prevent the backflow of blood.

valves

The mitral valve is normally closed ________

when the ventricle is in systole

The term that means heart contraction is

systole