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Respiratory system (General functions/terms (Type 2 alveolar cells:…
Respiratory system
General functions/terms
Type 2 alveolar cells: Cuboidal. Secrete surfactant ---> Prevents alveolar walls from sticking together.
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Respiratory membrane: Made of the alveolar wall on one side (simple squamous epithelium), capillary wall on the other, and their basement membranes. Exchange of gases occurs here.
General anatomy
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Internal respiration: Exchange of gases (O2 and CO2) between blood vessels (capillaries) and tissue cells.
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