Gross anatomy of the respiratory system in goose (Anser anser domesticus): Bronchi and sacci pneumatici

Abstract

In the Study, the macroanatomy of the bronchi and sacci pneumatici were examined in details in 7 domestic mature geese (Anser anser domesticus) with 4500-5000 g live weight. The left and right bronchus primarius seperated from trachea branched into four groups of bronchi secundarii that depart from the bronchus primarius called as bronchi mediodorsales (bmd). bronchi medioventrales (bmv), bronchi lateroventrales (blv), and bronchi laterodorsales (bld). The number of bmd, bmv. blv and bid were 4, 10, 10 and 25-30, respectively. It was seen that some of these bronchi were connected with pulmo and some of them were connected with sacci pneumatici. Totally seven sacci pneumatici were found in goose. Saccus thoracicus cranialis, saccus thoracicus caudalis and saccus abdominalis were in pair, however saccus cervicoclavicularis was single. It was determined that the saccus thoracicus cranialis and saccus thoracicus caudalis contained no diverticula and did not aerate any bones. It is first time that branching of the bronchi secundarii and relationship between branches of bronchi secundarii and sacci pneumatici in goose have been observed in the study.