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Respiratory System

Respiratory System. Functions of the Respiratory System. gas exchange regulation of blood pH voice production olfaction immunity, protection agains t microorganisms. Respiratory Anatomy. nasal cavity nasal septum – divides cavity in half hard palate – forms floor of cavity

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Respiratory System

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  1. Respiratory System

  2. Functions of the Respiratory System • gas exchange • regulation of blood pH • voice production • olfaction • immunity, protection against microorganisms

  3. Respiratory Anatomy • nasal cavity • nasal septum – divides cavity in half • hard palate – forms floor of cavity • paranasal sinuses – reduce weight of skull • voice tone, resonance • located in maxillary, ethmoid, sphenoid and frontal bones • produce mucus • stratified squamous; pseudostratifiedciliated columnar

  4. Anatomy • pharynx • digestive and respiratory • nasopharynx • uvula • pharyngeal tonsil • pseudostratified ciliated columnar • oropharynx • palantine and lingual tonsils • stratified squamous • laryngopharynx • stratified squamous; ciliated columnar

  5. Anatomy • Larynx • 9 cartilages connected by muscle ligaments • epiglottis – prevents food from entering larynx • thyroid cartilage – Adam’s apple • paired cartilages – attachment for vocal folds (false and true) • cricoid cartilage

  6. Anatomy • trachea – c-shaped cartilage • pseudostratified ciliated columnar • smokers: stratified squamous • bronchi bronchioles alveolar sacs (300 million) • pseudostratified ciliated columnar

  7. Anatomy • lungs • 3 lobes (right) and 2 lobes (left) • pleural cavities • lined with pleura (serous membranes)

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