BIOL 2060 Chapter Notes - Chapter 13.1: Brainstem, Respiratory Center, Aorta

• School: York University
• Department: Biology
• Course: BIOL 2060
• Professor: Hernan Humana

Document Summary

Inspire: muscles contract (diaphragm, intercostal), thorax up, decrease pip, increase. Air moves in until palv=patm, inspire is active. Expiration: muscles relax, pip increases, ptp decrease, less than recoil, lungs collapse, until recoil =tp. Neuroendocrine: para (acetylcholine) constrict, epine dilates, vasoactive peptides dilate 3. Lower partial pressure at altitude for oxygen, lower driving pressure. To increase ppo2, increase fraction of o2 in air. Hypo: ven