ANP 1105 Lecture Notes - Lecture 12: Bronchiole, Olfactory Mucosa, Lingual Tonsils

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: William Staines

Document Summary

Major function of respiratory system is to supply o2 and dispose of co2. Pulmonary ventilation: movement of air in and out of lungs. External respiration: exchange of gases between blood & air of alveoli. Transport of respiratory gases: role of blood in transport of gases between lungs and tissues of body. Internal respiration: at the level of the tissues, exchange of gases between blood in systemic capillaries and tissue cells. First 2 functions handled by respiratory system; other two by cv system. The components of the conduction and respiratory zones: Conducting zone: (passageways) 1 nose, 2 nasal cavity, 3 pharynx, 4 larynx, 5 trachea, 6 bronchi, bronchioles, terminal bronchioles / as well as providing a passageway, conducting zone organs also cleanse, humidify and warm incoming air. Respiratory zone: (= site of gas exchange) Composed of respiratory bronchioles, alveolar ducts and alveoli (microscopic) Structure of external nose: differences in nose size/shape due to differences in nasal cartilages.