Which combining form would you use to describe the windpipe?

• A. Mast/o
• B. Eryth/o
• C. Myel/o
• D. Bronch/o

Answer: (D)

Understanding the airway in terminology hinges on matching combining forms to the parts they name. The windpipe is the air passage that leads into the lungs, and the term that specifically names the tubes within the lungs that air travels through is bronch/o, referring to the bronchus and bronchial passages. That makes bronch/o the most appropriate combining form for describing the windpipe in this respiratory context.

The other options don’t fit because mast/o means breast, eryth/o means red blood cells, and myel/o refers to the spinal cord or bone marrow. So bronch/o is the correct and most relevant choice for the windpipe-related terminology.