Cardiovascular System Define

What is the main organ of the circulatory system?

• small intestine

• bone

• blood vessels

• heart

Arteries carry oxygen rich blood away from the heart.

• True

• False

The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

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

• head

• fist

• hand

• foot

How does the heart work?

• It pumps blood first to the lungs, back to the heart and then around the rest of the body.

• It pumps blood first to the rest of the body, back to the lungs and then to the heart.

• It pumps blood around the rest of the body, back to the heart and then to the lungs,

Identify

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

Identify

• Pulmonary veins
• Pulmonary artery
• Aorta
• Vena cava

Identify

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

Identify

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

Identify

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle