Multiple Choice
Which of the following structures is NOT part of the thoracic cage?
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1. Introduction to Anatomy & Physiology
Organization of the Body: Thoracic Cavity
Multiple Choice
In the organization of the thoracic cavity, the heart is contained in the ________ cavity.
A
Abdominal cavity
B
Cranial cavity
C
Pleural cavity
D
Pericardial cavity
Verified step by step guidance1
Step 1: Understand the anatomical divisions of the thoracic cavity. The thoracic cavity is divided into several smaller cavities that house different organs.
Step 2: Identify the main cavities within the thoracic cavity: the pleural cavities (which contain the lungs) and the pericardial cavity (which contains the heart).
Step 3: Recall that the abdominal cavity is located below the thoracic cavity and contains digestive organs, so it does not contain the heart.
Step 4: Recognize that the cranial cavity is located in the skull and contains the brain, so it is unrelated to the thoracic cavity or the heart.
Step 5: Conclude that the heart is specifically contained within the pericardial cavity, which is a part of the mediastinum in the thoracic cavity.
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