Question

what happens to the thoracic cavity when diaphragm muscle contact?​

Answer 1

Answer:

When the diaphragm contracts, it moves inferiorly toward the abdominal cavity, creating a larger thoracic cavity and more space for the lungs. Contraction of the external intercostal muscles moves the ribs upward and outward, causing the rib cage to expand, which increases the volume of the thoracic cavity.

Inflation reflex: Protects the lungs from over-inflating

Ventral respiratory group (VRG): Generates the breathing rhythm and integrates data

Answer 2

Answer:

when diaphragm muscle contracts, the thoracic cavity shrinks