Circulatory system

What is the largest blood vessel?

Aorta

Rank the following blood vessels in order of their average pressure, from highest to lowest: artery, vein, arteriole, venule, aorta, capillary.

Aorta > artery > arteriole > capillary > venule > vein

Endocardium

Endocardium

In terms of being open or closed, what is the state of the mitral and tricuspid valves (left and right atrioventricular valves, respectively) at the end of the first heart sound?

In terms of being open or closed, what is the state of the mitral and tricuspid valves (left and right atrioventricular valves, respectively) at the end of the first heart sound?

What is blood clotting made possible by?

Platelets

What vessels carry deoxygenated blood away from the heart?

Pulmonary artery only

How can the circulatory system promote heat retention/conservation, such as on a cold day?

Vasoconstriction

What is the correct path through the circulatory system which describes the passage of a blood clot originating in the left leg?

Vena cava → right atrium → right ventricle → lungs → left atrium → left ventricle → aorta

Endocardium

What layer of the heart would be most immediately susceptible to infections caused by bacteria circulating in the blood?