HUMB1000 Lecture Notes - Lecture 10: Pulmonary Pleurae, Capillary, Basement Membrane
Document Summary
Movement of air in and out of lungs. Gas exchange between blood and tissues: regulation of blood ph, voice production, smell (olfaction, protection. Divisions of the respiratory system: structural classification. Descends from the larynx and sits anterior to the oesophagus. Dense connective tissue and smooth muscle in between cartilage rings. Tracheal lumen (space where air travels down) lined with pseudostratified ciliated columnar epithelium with goblet cells (mucous producing) Hard palate - floor of nasal cavity. Separates nasal cavity into left and right parts. Compendium 4 - why do we breathe page 35. Epithelium of concha and most of nasal cavity is pseudostratified ciliated columnar epithelium. Via warm blood flowing through nasal cavity. Via moisture from mucous epithelium and excess tears which drain into nasal cavity. Resonating chamber for speech (sound of own voice) 10 segments in each left and right lung. Change in epithelium in lumen from pseudostratified ciliated columnar to simple ciliated columnar to simple ciliated cuboidal.
