The diaphragm receives help from the what muscles in the activity of breathing?

The diaphragm receives help from the intercostal muscles, which are located between the ribs. During inhalation, the intercostal muscles contract to raise the rib cage, expanding the thoracic cavity and allowing the diaphragm to move downward. This coordinated effort increases lung volume and facilitates airflow into the lungs. Additionally, accessory muscles such as the sternocleidomastoid and scalenes can assist during vigorous breathing or exercise.