Vol. 10, Special Issue 4 (2021)

Author(s):
S Jayachitra, P Dharani and K Balasundaram

Abstract:
The lung morphology and bronchial division pattern of cross bred bovine calf was studied by using silicone resin lung model. The lungs were right and left and located in the thoracic cavity. Both lungs were subdivided into cranial, middle and caudal lobes and the right lung had small accessory lobe. The bronchi were divided into tracheal bronchus, right and left primary bronchus. Dissimilar bronchial division pattern was observed in right and left lungs. The general decrease in diameter and length of bronchial ramifications was also observed. Each bronchial division was named according to the order in which the secondary bronchi comes off from the principal bronchi on each side. The right apical lobe was supplied by tracheal bronchus. The remaining lobes of right and left lung were supplied by branches arose from respective principal bronchus.