Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The heart is located in the mediastinum slightly to the left of the midline.
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1. Introduction to Anatomy & Physiology
Organization of the Body: Thoracic Cavity
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Where is the heart located in the thoracic cavity?
A
In the pleural cavity, surrounding the lungs
B
In the pericardial cavity, below the diaphragm
C
In the abdominal cavity, above the liver
D
In the mediastinum, between the lungs
Verified step by step guidance1
Begin by understanding the anatomy of the thoracic cavity, which is the chamber of the body that is protected by the thoracic wall (rib cage and associated muscles). It houses vital organs such as the heart and lungs.
Recognize that the thoracic cavity is divided into several smaller cavities: the pleural cavities (which contain the lungs) and the mediastinum (which is the central compartment).
The mediastinum is the area between the lungs, extending from the sternum to the vertebral column and from the thoracic inlet to the diaphragm. It contains the heart, thymus, parts of the esophagus, trachea, and major blood vessels.
The heart is specifically located within the pericardial cavity, which is a part of the mediastinum. The pericardial cavity is a fluid-filled space that surrounds the heart, providing it with protection and reducing friction during heartbeats.
Therefore, the heart is located in the mediastinum, between the lungs, not in the pleural cavity, abdominal cavity, or below the diaphragm.
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