Select all that apply. The nasal turbinates: cause air turbulence to vibrate the

Question

Select all that apply. The nasal turbinates:

cause air turbulence to vibrate the vocal folds

are layers of tissue overlaid on bones projecting into nasal cavity

reduce surface tension within the nasal cavity

are found within the lower airway

are subdivisions of the pharynx

contribute to humidifying air

cause air turbulence to vibrate the vocal folds

are layers of tissue overlaid on bones projecting into nasal cavity

reduce surface tension within the nasal cavity

are found within the lower airway

are subdivisions of the pharynx

contribute to humidifying air

Explanation / Answer

Nasal turbinates also known as nasal conchae are long, narrow, spongy, curled bony shelves that project from the nasal cavity wall downward into the nasal passages and these structures are responsible for directing airflow into the nasal cavity. They are covered with pseudostratified ciliated columnar epithelium with goblet cells. They increase the surface area of nasal cavity so that foreign particles present in air get trapped in the nostrils and also large amount of air gets humidified. They also enhance air turbulence that enables phonation (vibration of vocal cords). They are not subdivisions of pharynx but instead the pharynx follows nasal cavities. They are projected downward into the lower airway but are not found within the lower airway. The statements that apply for nasal turbinates include:

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