دراسة نسيجية مقارنة لرئة الدجاج مع رئة الأغنام

Abstract EN

The histology Study explaining to lung of birds which differs completely about the lung of sheep that consider as a once of animals mammalian , thus no showed tree – like of terminalies air ducts in alveoli , But observed in birds lung especially chicken , which formation from relatively small tube branching .

In each Lung of bird inter primary bronchus called mesobronchus , which It's branching into multigroup of smaller tubes of parabronchi , and the Later opening into smaller cavity called Atria due to small duct a known as infundibulla .

Atria the place of gases exchanges occurs between network of air capillaries and anastomsing with blood capillaries supply.