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sci triv wk6

Mrs. Hussey 5th Grade Science

What is respiration process of inhaling and exhaling
What percentage of the air you inhale is composed of oxygen 20.9%
What happens to the diaphragm when you breathe the diaphragm contracts and moves down
What is the scientific word for wind pipe trachea
The nose (nasal cavity) is the first part of the respiratory system. When you breathe in, what happens to the air when it enters the nasal cavity nasal cavity cleans the air and filters it from dirt and dust
What are the bronchi tubes that lead to the lungs, clean and moisten the air we breathe
What do the alveoli do air sacs, allow oxygen to pass from lungs into your blood vessels
Why does the pharynx need to have cilia to trap dirt that wasn't captured by the nasal cavity
What gas is released during respiration carbon dioxide
The air that we inhale and exhale is composed mostly of what gas nitrogen 79%
Created by: rhgoldie