Question

the left and right portions of the thoracic cavity are divided by the

multiple choice

diaphragm

peritoneum

meninges

serous membrane

mediastinum

Explanation:

The mediastinum is the central compartment of the thoracic cavity, dividing it into left and right portions. The diaphragm separates the thoracic cavity from the abdominal cavity. The peritoneum lines the abdominal cavity. The meninges cover the brain and spinal - cord. Serous membranes line body cavities and cover organs.

Answer:

E. mediastinum