Respiratory System

What's in the nasal cavity that keeps dust and particles from getting into our lungs?

When air goes through our noses on the way to our lungs, it gets cold

What are the tiny air sacs at the end of the bronchi called?

What's the name of the dome-shaped muscle beneath the heart and lungs?

When our hearts pump faster during hard exercise, it gets more blood through the lungs.

What are the little tubes branching away from our lungs called?

Which of these are NOT organs involved in breathing?

What causes us to get out of breath?

The respiratory system is responsible for bringing in oxygen and removing carbon dioxide

Air travels through our vocal cords when we speak.