Chapter22RespiratoryMarieb

Chapter22RespiratoryMarieb - Ch. 22: The Respiratory System...

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Explain the microscopic and gross anatomy of the respiratory system. Identify the pleural cavities, its membranes and the muscles of ventilation. Ch. 22: The Respiratory System Developed by John Gallagher, MS, DVM
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Respiratory system tasks 1° Functions: Gas Transport Gas Exchange O 2 and CO 2 via diffusion Acid-Base Balance CO 2 + H 2 O ⇌ H 2 CO 3 H + + HCO 3 - 2 ° Functions: Moistening and warming/cooling Particulate/pathogen removal Understand this formula!
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Respiratory Epithelium (review ch. 4) Histology? Pseudo… Mucus produced by numerous goblet cells Defense by means of •filtering hairs •turbinates •ciliary escalator (mucociliary blanket) •sticky mucus
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Respiratory System starts at the nares Major Functions Upper respiratory system: 1. Air conditioning (warming) 2. Defense against pathogens 3. Gas Transport Lower respiratory system: 1. 2. Gas exchange (ventilation) 3. Maintenance of homeostasis, e.g. pH
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Upper Respiratory System 1. Nose 2. Nasal Cavity 3. Paranasal sinuses 4. Pharynx
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Upper Respiratory System 1) Nose external and internal nares = Nostrils Nose Hairs = vibrissae Alar cartilages on the nose Paranasal Sinuses Fig 7.11 p 165
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System 2. Nasal Cavity Nasal Conchae: Superior, middle and inferior Other name: “Turbinate bones” because they create ______ Advantage ? nasal septum
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Chapter22RespiratoryMarieb - Ch. 22: The Respiratory System...

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