The prefix Thorac- refers to which region?

Master the Dean Vaughn Medical Terminology Test. Engage with flashcards and quizzes, detailed explanations provided. Enhance your medical vocabulary for exam success.

Multiple Choice

The prefix Thorac- refers to which region?

Explanation:
Thorac- denotes the chest region, the thorax—the area between the neck and the abdomen that contains the heart and lungs and is encased by the rib cage. In medical terms, prefixes indicate location, so thorac- is about the chest itself, not a single organ. For the heart, you’d see cardio- or cardiac; for the lung, pulmon- or pneumon-; for a rib, cost- or costa-. Words like thoracic or thoracentesis show the chest-focused use of this prefix. So the region described by thorac- is the chest.

Thorac- denotes the chest region, the thorax—the area between the neck and the abdomen that contains the heart and lungs and is encased by the rib cage. In medical terms, prefixes indicate location, so thorac- is about the chest itself, not a single organ. For the heart, you’d see cardio- or cardiac; for the lung, pulmon- or pneumon-; for a rib, cost- or costa-. Words like thoracic or thoracentesis show the chest-focused use of this prefix. So the region described by thorac- is the chest.

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