The Circulatory System

Front

What keeps blood from flowing back into a chamber of the heart?

Back

Valve

Front

Which side of the heart receives oxygen-poor blood from the rest of the body and pumps it to the lungs?

Back

Right

Front

Which of the following helps fight off diseases?

Back

White Blood Cells

Front

Which of the following carries oxygen to the cells of the body and carries carbon dioxide away?

Back

Red Blood Cells

Front

Veins take blood __________ the heart.

Back

To

Front

What is the main function of the circulatory system?

Back

To transport nutrients, gases, hormones, and waste products throughout the body.

Front

What are the two main types of blood vessels in the circulatory system?

Back

Arteries and veins.

Front

What is the role of the aorta in the circulatory system?

Back

The aorta carries oxygen-rich blood from the heart to the rest of the body.

Front

What is the function of platelets in the blood?

Back

Platelets help in blood clotting to prevent bleeding.

Front

What is the difference between oxygen-rich and oxygen-poor blood?

Back

Oxygen-rich blood contains a high level of oxygen and is bright red, while oxygen-poor blood has a low level of oxygen and is darker.