Question

The muscular layer separating thoracic and abdominal cavity in mammals is called ___________

Answer 1

Diaphragm:

1. The main respiratory muscle is the diaphragm, which is located beneath the lungs.
2. It's a large, dome-shaped muscle that contracts and flattens during inhalation, while the chest cavity expands.
3. A vacuum is created by this contraction, which sucks air into the lungs.
4. The diaphragm relaxes and returns to its dome shape during exhalation, forcing air out of the lungs.

Final answer: The muscular layer separating the thoracic and abdominal cavity in mammals is called diaphragm.