BIOM 2000 Lecture Notes - Lecture 6: Alkalosis, Hypoventilation, Pleural Cavity
7 Apr 2016
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^ includes: nose, pharynx, larynx, trachea, lungs, bronchi, bronchioles & alveoli. Job: passage to lungs> purifies, humidifies & warms air> gas exchange b/w blood & external environment. Nasal & oral cavities ate separated by palate: nasal: moistens air & traps foreign particles, oral: route for food & air transfer. Pharynx (throat) passage from nasal cavity to larynx. Larynx routes food/air & aids in speech (voice box) Trachea (wind pipe) connects larynx> bronchi (branches to l&r lungs) Bronchi (l&r) formed by of trachea ( "s into sm. Trachea, bronchi & bronchioles keeps r. s tract moist w/ cilia mucosa & trap bad pathogens. Cilia beats opposite way of air& moves bas shit away from lungs. Gets here (^) through bronchioles & branches more. Respitory bronchioles ate part of conduction zone (channel from respitory zone) Gas exchange occurs across respitory membrane of alveoli via diffusion: a. k. a air/blood barrier (o) enters blood while (c) enters alveoli.
