Bronchial lymph center

The bronchial lymph centre is composed by all lymph nodes located on the bifurcation of the trachea and the bronchi:

• The cranial tracheobronchial lymph nodes

• The tracheobronchial lymph nodes (previously the Lnn. bifurcationis) which include the left, right and middle tracheobronchial lymph nodes, which lie on the left, right and caudal side of the bifurcation, respectively,

• The pulmonary lymph nodes which lie on the bronchi before they enter the lungs, almost always on their dorsal side. These nodes are calledpulmonary lymph nodes even though they are not located in the lungs, because they only receive lymph vessels from the lungs, and because they correspond to the pulmonary lymph nodes located on the bronchi in cattle, although in that species the lymph nodes are within the lungs.