CIRCULATORY SYSTEM

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

• head

• fist

• hand

• foot

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.

What are the smaller branched tubes that connect the arteries and veins called?

• mini veins

• blood vessels

• capillaries

The main function of the circulatory system is 

• To give the body structure and support
• Excrete waste
• transport blood, nutrients, and gases throughout the body
• to transport messages from the body to the brain

What part of blood is responsible for fighting infections?

• Red Blood Cells
• White Blood Cells
• Platelets
• Plasma

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

What are the main organs of the circulatory system?

• brain, spine, & nerves

• heart, arteries, & veins

• heart, lungs, & veins

• skin, nails, & hair

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,

Veins carry oxygen poor blood back to the heart.

• False

• True

What do the arteries do?

• pumps blood to the heart
• pumps blood to and from the heart
• carry's blood away from the heart 
• a muscle