Circulatory System

The main organ of the circulatory system is

• Heart

• Lungs

• Veins

• Stomach

What is the shape of a human heart?

• Heart

• Sphere

• Cube

• Conical

Which is NOT a chamber of the heart?

• Left Ventricle

• Aorta

• Right Ventricle

• Left Atrium

Which side of the heart has oxygen rich blood?

• Left

• Right

_______ carry blood away from the heart.

• Arteries

• Veins

_______ carry blood to the heart.

• Arteries

• Veins

What is the job of the heart?

• To deliver nutrients

• To receive oxygen

• To pump blood

• To send signals to the Brain

Which of the following is a blood vessel?

• Left Atrium

• Capillaries

• Neuron

• Pulmonary Valve