Questions and Answers
What is the thoracic cavity?
What are ribs also known as?
Costals
How many pairs of true ribs are there?
What are false ribs?
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What defines floating ribs?
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What is the sternum commonly known as?
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What is the manubrium?
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The body of the sternum is also known as the gladiolus.
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What is the xiphoid process?
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Study Notes
Thoracic Cavity
- Known as the rib cage, it serves as a protective bony structure for the heart and lungs.
Ribs
- Referred to as costals, there are 12 pairs that connect posteriorly to the thoracic vertebrae.
True Ribs
- Comprise the first 7 pairs of ribs, which are directly attached to the sternum at the anterior side.
False Ribs
- Consist of the next 3 pairs of ribs that are connected to the sternum through cartilage, rather than directly.
Floating Ribs
- Comprise the last 2 pairs of ribs, which are only attached posteriorly to the vertebrae without an anterior attachment.
Sternum
- Known as the breastbone, it is a flat, dagger-shaped bone that includes three parts: the manubrium, body of the sternum, and xiphoid process.
Manubrium
- The upper portion of the sternum that contributes to its overall structure.
Body of the Sternum
- Also called the gladiolus, this is the central portion of the sternum.
Xiphoid Process
- A cartilage structure that forms the lower segment of the sternum, providing flexibility.
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Description
Explore key terms related to the thoracic cavity in this quiz based on Medical Terminology Chapter 3. Understand vital concepts like ribs and their classifications to enhance your knowledge of human anatomy. Perfect for students of medicine and healthcare.
