34.1 Circulatory System (2)

Which of the following is not a blood vessel?

• arteries

• lymph vessels

• veins

• capillaries

Deoxygenated blood flows from body parts to ______ of the heart.

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

Check all that is correct for the arteries.

• they start from the heart and goes to the body parts

• they have thick muscular walls

• they have small lumen

• they have valves

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

Arteries carry oxygen rich blood away from the heart.

• True

• False

Veins carry oxygen poor blood back to the heart.

• False

• True

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.

______________ are the smallest blood vessels.

• Arteries
• Veins
• Capillaries

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory
• digestive
• muscular
• skeletal

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