The structure that separates the thoracic cavity from the abdominopelvic cavity is the
A) diaphragm.
B) liver.
C) mediastinum.
D) small intestine.

Question

Quizplus · Accepted Answer

The diaphragm is a muscular structure that separates the thoracic cavity, which contains the heart and lungs, from the abdominopelvic cavity, which contains the digestive and reproductive organs. The liver, mediastinum, and small intestine are all located within either the thoracic or abdominopelvic cavities and do not separate them.

The Structure That Separates the Thoracic Cavity from the Abdominopelvic