The Heart is Situated in the Middle of the Thoracic

Question

The heart is situated in the middle of the thoracic cavity in a region known as the:
A)mediastinum.
B)cardiac notch.
C)dorsal cavity.
D)pleural cavity.

Accepted Answer

The heart is situated in the mediastinum, which is the central region of the thoracic cavity between the lungs. The cardiac notch is a groove on the surface of the left lung where the heart sits. The dorsal cavity is located on the posterior side of the body and contains the spinal cord. The pleural cavity is the space between the pleural membranes surrounding each lung.