Chapter 13: The Cardiovascular System

Which number identifies the left atrium?

• 2

• 4

• 5

• 9

The right and left ventricles contract almost simultneously.

• True

• False

The tricuspid valve is on the left side of the heart.

• True

• False

When the ventricles contract, the semilunar valves are open.

• True

• False

The mitral valve (aka the bicuspid valve) has two cusps.

• True

• False

Vasodilation increases the diameter of blood vessels.

• True

• False

Tags

NGSS.HS-LS1-3

Systole and hiastole are the two phases of the cardiac cycle.

• True

• False

HDL cholesterol helps remove fat from artery walls.

• True

• False

When the atria contract, the semilunar valves are open.

• True

• False

Which of the following is a function of the cardiovascular system?

• transport of oxygen

• removal of carbon dioxide

• assistance with immune function

• All of the answers are a function of the cardiovascular system