The right main bronchus is shorter, has a larger diameter, and descends toward the lung at a more angle than the left.

Vertical

Explanation:

Bronchus is defined as the passage which helps in the channeling of air into the lungs. This helps in efficient metabolic processes of the body.

The right main bronchus of the lungs is usually shorter, has a larger diameter, and descends toward the lung at a more vertical angle than the left.

answer; /// i do believe its (heredity); good luck