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The heart is situated in the ____ surrounded by the pericardial sac.


Sagot :

Answer:

mediastinum

Explanation:

Within the mediastinum, the heart is separated from the other mediastinal structures by a tough membrane known as the pericardium, or pericardial sac, and sits in its own space called the pericardial cavity. ... The heart is located within the thoracic cavity, medially between the lungs in the mediastinum.