11. Laplace's law and surfactant & 12. Anatomical dead space & 3. Total pulmonary versus alveolar ventilation

If two alveoli have the same surface tension, the smaller alveolus has the _ and is more likely to _.

higher internal pressure, empty into a larger alveolus

The stabilizing mechanism from _, causes smaller alveoli to have a reduced _, keeping them from _.

Type II alveolar cells, pressure difference, colapsing

How does surfactant help us? Who might produce insufficuent surfactant and what is the result?

makes it easier to breathe bc alveoi aren’t collapsing, newborn babies which causes respiratory distress syndrome

What is anatomical dead space?

conducting airways that does not participate directly in gas

exchange ~150mL/500mL tidal volume. at the end of inspiration the dead space contains fresh inspired air but at the end on expiration it contains much CO2

Rapid shallow breathing and normal breathing can have the same total _ of _, but rapid shallow breathing has _ because _.

pulmonary ventilation, 6000mL/min, less alveolar ventilation, a larger fraction of each breath occupies dead space