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9th--15-2/2

Horizontales
Muscle that separates the chest from the abdominal activity
Example: running or fast walking (2 words)
A contagious bacterial infection that usually affects the of lungs; immune system surrounds the infected area and isolates it
Verticales
Takes place as oxygen and carbon dioxide spread across the walls of the capillaries and alveoli (2 words)
Air enters and exits your body through the ____ __ ____
____ damages all parts of the respiratory system and is the main cause of lung cancer