Respiratory System.

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Presentation transcript:

Respiratory System

Respiratory Functions I.  Provide surface area for the diffusion of gasses A. Oxygen (To be transported to the cells for aerobic respiration) B. Excrete carbon dioxide II. Warm, moisten, and filter inspired air

Respiratory Organs Breathing structures Nose (Filters air) Sinuses (Warm and moisten air) Pharynx Trachea Lungs a.      Bronchi b.     Bronchioles c.      Alveoli

Respiratory Organs Accessory structures Diaphragm Contraction results in inhalation Relaxation results in exhalation Vocal cords

Healthy Lungs and Smokers Lungs

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