The muscle that forms a partition between the thoracic and abdominal cavities is the
A) scalenes.
B) interspinales.
C) internal intercostal.
D) diaphragm.
E) transversus thoracis.

Question

Quizplus · Accepted Answer

The diaphragm is a large, dome-shaped muscle that separates the thoracic and abdominal cavities. It is the primary muscle of respiration, and it also helps to maintain abdominal pressure.

The Muscle That Forms a Partition Between the Thoracic and Abdominal