Corrosion Casting of the Bronchial Pattern of Goat Lungs and Chicken Lungs: an Educational Tool For Veterinary Medicine and Surgery and a Comparative ToolFor Human Anatomy

Abstract

Corrosion casting is a conventional method employed in the fields of anatomy and pathology to create precise copies of vascular and airway structures. This is achieved by injecting resin into these structures, which then solidifies upon exposure. This study utilises corrosion casting to clarify the bronchial patterns of goat and chicken lungs, with the goal of improving instructional resources in veterinary medicine and surgery and enabling comparison analyses with human anatomy. The procedure involves injecting a polymer resin into the tracheobronchial tree of deceased goat and chicken lungs. After the resin has completely solidified, powerful acids and alkalis are used to dissolve the surrounding tissue, creating a precise replica of the structure of the airway. Understanding the bronchial branching patterns plays a key role in the comprehension of respiratory physiology and pathology, and these castings are the means that enable the doctors to examine and evaluate them in great detail. When comparing bronchial patterns in humans, chickens, and goats, it is important to note that there are some differences in the anatomies. The reason behind them is that they have different respiratory physiologies and their adaptations are habitat-specific.   The complexity of the airway segments in bird's respiratory systems implies a more elaborate and efficient gas exchange mechanism than that of mammals. Moreover, it is a vital addition to our grasp of the specific respiratory anatomy when applied to veterinary and medical schools as part of teaching aids. Corrosion casting is a tool that teachers can use on the fully 3D animated and moulded respiratory systems of many species to show students the precision that existed.