Anatomy of the Upper Airway and Conducting Pathways

Notes

Respiratory System Test Review Essentials 2025 1. What is the major function of the respiratory system? Ventilation - so O2 can be delivered to the bloodstream and CO2 from the bloodstream. 2. List the items found in the URT (upper respiratory tract). Nose, nasal cavity, mouth, pharynx, throat, larynx 3. List the items found in the LRT (lower respiratory tract). Trachea, lungs, bronchi, bronchioles, alveoli 4. What is the function of the nasal septum? Divides the nose into left and right portions 5. What is the function of mucous membranes in the nasal cavity? To warm and moisten the air 6. What is the function of cilia in the nasal cavity? Filters and removes debris 7. What is the function of olfactory receptors? Receptors for your sense of smell 8. What is the function of tonsils? Form a protective circle around the entrance to the respiratory system 9. What are sinuses? Air filled cavities in the skull which serve to reduce the weight of the skull, they also give resonance to your voice 10. What 4 bones make up the paranasal sinuses? Frontal, ethmoidal, sphenoidal, maxillary 11. How is the pharynx divided? Nasopharynx (posterior to the nasal cavity), oropharynx (posterior to the...