BPK 305 Lecture Notes - Lecture 23: Lysosome, Hemoglobin, Heart

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 305
• Professor: Damon Poburko

Document Summary

Lecture 23 organization of the respiratory system. 1) gas exchange: = main function, o2 uptakes and co2 release. 2) conditioning of inspired air: warming and moisturizing the air we breathe in, filtering particles > 10 um. 3) secretion of mucus: clear debris away from airways, ex. the large particles filtered by function #2. 4) filter small emboli (blood clots) from the blood. 5) secrete surfactant and ace: ace = angiotensin converting enzyme. 6) acid-base balance of blood: co2/hco2 buffering. 8) olfaction (sense of smell: nerve endings in the roof of the nose extend from olfactory epithelium to olfactory bulb. 9) heat loss: helps to maintain the core body temp. Components of the respiratory system: air pump, upper airways/conducting airways, lungs, chest wall and diaphragm, surface for gas exchange. Increase surface area for secretion: may have chemoreceptors. Airway dynamics (moving air: generation 2-4 -> has slight decrease in csa.