Question

The expansion and construction of the lungs is controlled by

Answer 1

Explanation:

The lungs have no skeletal muscles of their own. The work of breathing is done by the diaphragm, the muscles between the ribs (intercostal muscles), the muscles in the neck, and the abdominal muscles. ... As the diaphragm contracts, it increases the length and diameter of the chest cavity and thus expands the lungs.