The Lungs

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Conducting Zone

Primary Bronchi◦Divided into left and right (right is usually

straighter and shorter)Apex

◦top narrow portion of lungsBase

◦rests on diaphragmBrionchioles

◦Smallest conducting passageway

Pleura

Lungs

Pulmonary Pleura◦covers lungs

Parietal pleura◦lines the walls of the thoracic cavity

Pleural cavity◦space between the pulmonary and parietal

pleura

Alveolihttp://www.3dscience.com/img/Products/3D_Models/Human_Anatomy/Alveoli/supporting_images/3D_Model_Anat_Alveoli3_web.jpg

Alveoli

air sacwhere gas exchange occurs

Alveolihttp://t2.gstatic.com/images?q=tbn:ANd9GcTDaZJqvQF71lf8CIDEjQgzudSJauUhpJFQjQutAuTB49dtM7KO9_UOlCEe

Respiratory Zone

alveoli alveoli ductsalveolar sacs

Conducting Zone

Everything from nose to bronchioles