Name: 

The circulatory system carries the needed materials oxygen and ____________________ to the body cells.

The group of cells called the ____________________ regulates the rate at which the heart beats.

Blood is pumped through blood vessels by the action of the organ known as the ____________________.

A flap of tissue called a(n) ____________________ separates the right atrium from the right ventricle.

Blood that contains large amounts of carbon dioxide flows from the body into the ____________________ atrium of the heart.

Blood that is rich in oxygen leaves the heart through the blood vessel known as the ____________________.

Blood returns to the heart from the body through blood vessels called ____________________.

Substances are exchanged between the blood and body cells in the blood vessels known as ____________________.

A sphygmomanometer measures ____________________.

The force with which the ____________________ contract causes blood pressure.

Fibrin is produced when the blood components called ____________________ start a chain reaction that produces a blood clot.

The marker molecules on red blood cells determine a person’s ____________________.

A person who receives the wrong ____________________ of blood during a blood transfusion may die.

Fluid that has leaked out of capillaries is returned to the blood by the ____________________ system.

Fluid from the blood that enters lymphatic vessels is known as ____________________.

To help prevent atherosclerosis, eat a balanced diet that is low in ____________________.

Cardiovascular health can be maintained by strengthening the heart muscle through regular ____________________.

High blood pressure is also called ____________________.

A buildup of cholesterol in artery walls can lead to a condition called ____________________.

Artery walls consist of ____________________ cell layers.