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The nose, mouth, pharynx, epiglottis, larynx and trachea are part of what Respiratory Tract?
The bronchial tree and lungs are part of what Respiratory Tract?
What in the nose is used to moisten, warm and filter the air that enters in the nose?
The _______ helps make the bones of the skull lighter.
How many divisions does the pharynx have?
The___________ is a lid-like structure at the base of the tongue that closes off during swallowing.
What contains vocal cords that vibrate against each other to cause sound?
What separates the thoracic cavity from the abdomen?
Alveoli are tiny ___ ____ found at the end of the bronchioles.
What contains the bronchioles?