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Introduction and Upper Respiratory Tract Prof. K. Sivapalan.

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Presentation on theme: "Introduction and Upper Respiratory Tract Prof. K. Sivapalan."— Presentation transcript:

1 Introduction and Upper Respiratory Tract Prof. K. Sivapalan

2 Function of Respiratory System 22013Upper Respiratory Tract

3 Upper respiratory tract 32013Upper Respiratory Tract

4 Airways Air reaches lungs through nose, pharynx, trachea, bronchi which are kept open by cartilage [muscles can obstruct] Broncheols [d < 1.5 mm] have no cartilage and change diameter in response to transpulmonary pressure and smooth muscle tone. Smooth muscle responds to adrenergic, cholinergic and many other agents. 42013Upper Respiratory Tract

5 Airway Resistance 52013Upper Respiratory Tract

6 Function of the Nose- Airconditioning 62013Upper Respiratory Tract

7 Protective Reflexes 72013Upper Respiratory Tract

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