Circulatory System

Front

What are platelets?

Back

Platelets are small cell fragments in the blood that help form blood clots.

Front

What is the main organ of the circulatory system?

Back

The main organ of the circulatory system is the heart.

Front

True or False: Veins carry oxygen-poor blood back to the heart.

Back

True

Front

What are the three types of blood vessels?

Back

The three types of blood vessels are arteries, veins, and capillaries.

Front

The heart is about the size and shape of what?

Back

The heart is about the size and shape of your fist.

Front

What is the function of arteries?

Back

Arteries carry oxygen-rich blood away from the heart to the body.

Front

What is the function of veins?

Back

Veins carry oxygen-poor blood back to the heart.

Front

What are capillaries?

Back

Capillaries are tiny blood vessels where oxygen and nutrients are exchanged with cells.

Front

What is blood made of?

Back

Blood is made of red blood cells, white blood cells, platelets, and plasma.

Front

What is the role of red blood cells?

Back

Red blood cells carry oxygen from the lungs to the body's cells.