The intercostals and the diaphragm.
It houses the ribs and chest muscles
The Thoracic Cavity
Yes. Along with the diaphram.
Intercostal Muscles
The thoracic cavity is stiffened by the ribcage and the muscles associated with breathing. This forms a flexible but comparatively firm surface.
The thoracic cavity is superior to the abdominopelvic cavity.
more muscles involved in increasing the thoracic cavity
No. Frogs do not have a thoracic cavity
When the diaphragm and muscles of the rib cage relax, the thoracic cavity becomes smaller. These changes occur during exhalation.
It houses the ribs and chest muscles
The diaphragm divides the thoracic cavity from the abdominopelvic cavity.
Thoracic cavity indicates your chest , the Abdominal cavity indicates your abdomen INFERIOR means under .Your chest is above your abdomen hence the thoracic cavity is SUPERIOR to the Abdominopelvic cavity.