Anatomy of Respiratory System in Poultry

Respiration is one of the functions that has vital importance for the continuity of metabolism. The level of metabolic activity of a living organism is dependent on the respiratory system which mediates the transport of oxygen to tissues and the accumulation of accumulated carbon dioxide. Naris, cavitas nasalis, larynx, trachea, syrinx, primer bronchi (mesobronchi), secondary bronchi, inferior bronchi (parabronchi), air capillaries, pulmo, air sacs and pneumatic bones form respiratory tract of a bird. Half of the air taken in inspiration goes to the caudal air sacs, and other half goes to the cranial air sacs over the lungs (leaving oxygen and loading carbon dioxide). In the expiration while the air in the caudal sacs passes through the lungs (leaving oxygen and loading carbon dioxide) to the trachea, the air in the cranial sacs passes to the trachea