The Breathing and Respiratory System

What is the breathing and respiratory system?

Where is the breathing and respiratory system?

What makes up the breathing and respiratory system?

What happens when you breathe in?

What happens when you breathe out?

What happens in the respiratory system?

What is the trachea?

What is your lungs?

What is the alveoli?

What is the pharynx?

What is the bronchus?

What are bronchioles?

What is the nasal cavity?

What is the diaphragm?

What are red blood cells?

What are some diseases in the respiratory system?

What is influenza?

What is asthma?

What is lung cancer?