Lesson 1.2- Circulatory and Respiratory Systems

Which type of blood vessel carries blood to your heart?

• Arteries

• Capillaries

• Veins

• Valves

This organ pumps blood through your body.

• heart

• artery

• vein

• capillaries

The system that delivers oxygen and gets rid of carbon dioxide.

• respiratory

• skeletal

• lymphatic

• digestive

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

When you exercise, your heart beats faster to...

• spread oxygen throughout your body more quickly.
• make you feel excited.
• let you know you're working hard.

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

What are the main organs of the respiratory system that allow us to breathe and for gas exchange to happen?

• diapragm

• lungs

• trachea

The circulatory system works with the ___________ system to provide our body with oxygen and get rid of CO2 (carbon dioxide).

• respiratory

• digestive

• muscular

• skeletal

What do arteries do?

• pump blood to the heart

• carry blood away from the heart

• pump blood to and from the heart

What does the circulatory system do?

• breaks down our food

• transports blood throughout our body

• decides our traits