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Question	Answer
It is where air enters the body	Nose
They clean the air and make it warm and moist before going to the pharynx.	Nasal passages
It connects the nasal passages to the larynx.	Pharynx
It connects the pharynx to the trachea and contains the vocal folds.	Larynx
They are in the larynx and help us speak.	Vocal folds
It is a rigid tube make up of hard rings where air passes through.	Trachea
They are the two branches in which the trachea divides to enter both lungs.	Bronchi
They are the branches inside the lungs in which bronchi divide	Bronchioles
They are tiny sacs with capillaries where the exchange of gases takes place.	Alveoli
It is a gas in the air that our cells need to obtain energy from nutrients.	Oxygen
It is a gas that our cells produce when they obtain energy from nutrients and oxygen. It is a waste product.	Carbon dioxide
In this process, oxygen gets from the air to the alveoli and enters the blood.	Inhalation
In this process, carbon dioxide enters the alveoli from the blood and leaves the body.	Exhalation

Respiratory system

	Created by Beatriz Cánovas almost 5 years ago