Final answer:
The right lung has three secondary bronchi corresponding to its three lobes, and the left lung has two secondary bronchi corresponding to its two lobes.
Step-by-step explanation:
Number of Secondary Bronchi in the Lungs
The human respiratory system includes the trachea, which bifurcates into two primary bronchi, leading to the right and left lungs respectively. Each primary bronchus then divides into smaller bronchi. On the right side, the primary bronchus branches into three secondary bronchi corresponding to the three lobes of the right lung - the superior, middle, and inferior. The left lung, which is smaller due to the heart's position, has two secondary bronchi for its two lobes - the superior and inferior. This arrangement allows for the distribution of air into separate regions for efficient gas exchange.