Question

A large muscular sheet called
forms the floor of the chest cavity.
​

Answer 1

Answer:

diaphragm

Explanation:

The diaphragm is a large muscular sheet which forms the floor of the chest cavity. It is a domed shaped structure made up of muscles which separate thoracic cavity and abdominal cavity. So the correct answer is 'Diaphragm'. How satisfied are you with the answer?

Answer 2

Explanation:

The diaphragm is a dome-shaped structure and this dome curves upwards. The superior surface of this dome forms the floor of the chest cavity and the inferior surface forms the roof of the abdominal cavity. It is the main muscle of respiration and functions in the breathing process.