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Respiratory System

Across
Membranes covering the lungs
Back of the mouth
Separates the upper and lower airways
Back of the nose
The bronchi and lungs
Inspiration
Vibrates to create sound when we talk
Divides the nasal cavity from the mouth
Down
Doorway to the trachea
Nostrils
Expiration
The mouth, nose, sinuses, and pharynx
Tiny hairs within the nasal cavity
Microscopic-sized air sacs