Chapter 1 Flashcards
What is the function of the lungs
Bring atmospheric gases in contact with blood
Ventilation
Process of moving gas in and out of lungs
External respiration
Between air in lungs bad the blood
Internal respiration
Between capillaries and the tissues
What does conducting airways connect
Atmospheric air with the gas exchange membrane of the lungs
Does conducting airways participate in gas exchange
No
What does the upper airways consist of
Nose, oral cavity,pharynx,larynx
Main function of the nose
Humidification,heating, and filtering of inspired air
The nose is as efficient as a filter that most particles larger than 5
micrometers in diameter do not gain entry to the lower airways
True
What are pseudostratified , ciliated columnar epithelium interspersed with?
Many mucous-secreting glands covers the posterior two thirds
Turbinates
The convoluted design of the turbinates greatly increases the surface area of the nasal cavity
What happens after the endotracheal tube is in place
The cuff is inflated to form a seal between the tracheal wall and tube
Nasopharynx
Behind nasal cavity down to soft palate
Oropharynx
Behind oral cavity from soft palate to base of tongue
Laryngopharynx
Below base of tongue and above larynx