3.4 Circulatory System Flash Cards

Front

How does the circulatory system help the body?

Back

It transports oxygen, nutrients, and wastes throughout the body.

Front

What are the main parts of the circulatory system?

Back

The main parts are the blood, the heart, and the blood vessels.

Front

How does blood move through the body?

Back

The heart pumps blood through arteries to capillaries, then back to the heart through veins.

Front

What are the three types of blood vessels?

Back

The three types are arteries, veins, and capillaries.

Front

How are arteries different from veins?

Back

Arteries carry blood away from the heart under high pressure; veins carry it back under lower pressure.

Front

What do capillaries do?

Back

Capillaries allow oxygen, nutrients, and wastes to move between blood and tissues.

Front

What is the function of red blood cells?

Back

Red blood cells carry oxygen using a protein called hemoglobin.

Front

What is the role of white blood cells?

Back

White blood cells fight infections by destroying bacteria and viruses.

Front

What do platelets do?

Back

Platelets help with blood clotting.

Front

What is plasma?

Back

Plasma is a liquid that carries blood cells and makes up more than half of the blood’s volume.