Which combining form is a derivative of the Latin word lamina meaning something thin, such as a thin plate or a fish scale?

• A. ren/o
• B. bi/o
• C. lamin/o
• D. pulmon/o

Answer: (C)

Understanding how roots convey physical characteristics is key. Lamina means a thin plate or layer, and the combining form lamin/o carries that exact idea of something thin or plate-like. That direct link to a thin, plate-like structure is why lamin/o fits this term, whereas ren/o means kidney, bi/o refers to life, and pulmon/o means lung. The question hinges on recognizing lamina’s meaning of a thin plate and selecting the form that preserves that sense.