Dean Vaughn Medical Terminology Practice Test 2026 - Free Medical Terminology Practice Questions and Study Guide

This prefix signals structures that are the body's insides—the viscera. Splanchn- comes from Greek splankhnon, meaning internal organs. You’ll see it in terms like splanchnic nerves, which relate to the autonomic nerves supplying the abdominal organs, and in words about the study or treatment of the viscera. That makes internal organs the best fit. The other options point to different tissues—skin (derm-), blood (hem/o- or sanguin-), and muscle (myo- or sarc-).