Bronchioles

... blood vessels and in hollow organs of digestive, respiratory, urinary and reproductive organs. ex. bladder, intestines, ureters, ductus deferns. ,bronchioles. function: Moves food, urine, and reproductive tract secretions; controls diameter of respiratory passages (bronchi); regulates diameter ...

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yes, but increase of CO2 means decrease of O2. So which one stimulates... the both regulate different things ;) --> High alveolar pCO2 cause bronchioles to dilate and high alveolar pO2 cause alveolar capillaries to dilate.

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... Bronchi: pseudostratified ciliated columnar epithelium (primary, secondary and tertiary bronchi), ciliated simple columnar epithelium (larger bronchioles), ciliated simple cuboidal epithelium (smaller bronchioles), nonciliated simple cuboidal epithelium (terminal bronchioles) For no.4 Since ...

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... cilindrical with cilia.At the level of the vocal cords it is pluristratified pavimentos Trachea-pseudostratified Main Bronchi-pseudostratified Bronchioles-unistratified cubic Real hard question!!!

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