* Right Lung: The right lung has four lobes:
* Cranial (front) lobe
* Middle lobe
* Caudal (rear) lobe
* Accessory lobe
* Left Lung: The left lung has only three lobes:
* Cranial lobe
* Caudal lobe
* Accessory lobe
So, while there aren't loops in the traditional sense, the lobes within each lung can be considered as separate units.