Question

the muscular floor of the chest cavity............................

Answer 1

the muscular floor of the chest cavity is diaphragm. i hope it help

Answer 2

The diaphragm is a C -shaped structure of muscle and fibrous tissue that separates the thoracic cavity from the abdomen. The dome curves upwards. The superior surface of the dome forms the floor of the thoracic cavity, and the inferior surface the roof of the abdominal cavity.
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