Exploring Blood Circulation Basics

The right side of the heart is blue because it carries _______ blood.

• oxygenated

• deoxygenated

During a science class, Maya learned about the components of blood. What is plasma?

• only white blood cells

• only red blood cells

• fluid part of blood

• hemoglobin

The smallest type of blood vessel is the:

• nerve

• vein

• capillary

• artery

Which is a function of the cardiovascular system?

• to move water throughout the body

• to transport gases throughout the body 

• to eliminate waste from the body

• to provide structural support for the body 

What is the main function of the heart in the circulatory system?

• To digest food

• To pump blood throughout the body

• To produce oxygen

• To store nutrients

Which part of the heart receives oxygen-poor blood from the body?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

What type of blood vessel carries blood away from the heart?

• Veins

• Arteries

• Capillaries

• Lymph vessels

Which component of blood is responsible for carrying oxygen?

• White blood cells

• Red blood cells

• Platelets

• Plasma

What is the function of capillaries in the circulatory system?

• To carry blood to the heart

• To exchange nutrients and gases with tissues

• To store blood

• To fight infections

Which part of the heart pumps oxygen-rich blood to the body?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle