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Medical Terminology Chapter 3: Thoracic Cavity

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Medical Terminology Chapter 3: Thoracic Cavity

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Questions and Answers

What is the thoracic cavity?

AKA the rib cage, is the bony structure that protects the heart and lungs (correct)

A structure that protects the brain

A part of the digestive system

The area of the body responsible for breathing

What are ribs also known as?

Costals

How many pairs of true ribs are there?

7 (correct)

What are false ribs?

The next 3 pairs of ribs that are anteriorly attached to the cartilage, connecting them to the sternum. Signup and view all the answers

What defines floating ribs?

The last 2 pairs of ribs that are only posteriorly attached to the vertebrae and not anteriorly attached. Signup and view all the answers

What is the sternum commonly known as?

Breast bone Signup and view all the answers

What is the manubrium?

The bony structure that forms the upper portion of the sternum. Signup and view all the answers

The body of the sternum is also known as the gladiolus.

True Signup and view all the answers

What is the xiphoid process?

The structure made of cartilage that forms the lower portion of the sternum. Signup and view all the answers

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.