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

Question

Quizplus · Accepted Answer

The diaphragm, a dome-shaped muscle, forms a partition between the thoracic and abdominal cavities. As it contracts and relaxes, it regulates breathing and creates negative pressure in the thorax to facilitate inspiration.

The Muscle(s)that Form(s)a Partition Between the Thoracic and Abdominal Cavities