Three-Dimensional Structure and Disposition of the Air Conducting and Gas Exchange Conduits of the Avian Lung: The Domestic Duck (<i>Cairina moschata</i>)

<table>Macrographs of fixed lung specimens showing the medioventral aspect of duck the lung. (a) On the ventral surface the ventral septum covers the lung (arrowhead) and the ostia of posterior thoracic air sacs (curved arrows in (a)) are shown. The primary bronchi (PBr) and the syrinx (Sy) are also indicated. (b) Ventral view of the lung with a splint of wood (black arrowhead) inserted into the fourth medioventral secondary bronchus (MV4) to show the superficial position of this secondary bronchus (white arrowhead). The mesobronchus has been opened (arrow) to show its trajectory.</table>

International Scholarly Research Notices

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Figure 2

Figure 2: Three-Dimensional Structure and Disposition of the Air Conducting and Gas Exchange Conduits of the Avian Lung: The Domestic Duck (<i>Cairina moschata</i>) 

Figure 2 | Three-Dimensional Structure and Disposition of the Air Conducting and Gas Exchange Conduits of the Avian Lung: The Domestic Duck (Cairina moschata) 