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Respiratory Anatomy

Horizontales
The primary muscle involved in breathing.
The largest part of the respiratory system, responsible for gas exchange.
The small tubes that branch off from the bronchi and lead to the alveoli.
The substance produced by the lungs to reduce surface tension in the alveoli.
Verticales
The part of the brain that controls the rate and depth of breathing.
The small blood vessels surrounding the alveoli, where gas exchange occurs.
The tube that connects the throat to the lungs.
Small air sacs where gas exchange occurs.