Abdominal Quadrant Diagram - Historical Medical Illustration Explained #3901656 (License: Personal Use)

This black-and-white engraved diagram illustrates the traditional nine-region abdominal division system used in historical clinical anatomy. Each region is clearly labeled (e.g., “Right Hypochondriac,” “Umbilical”), and the central umbilical zone features a symbolic all-seeing eye, possibly reflecting esoteric or pedagogical symbolism of the era. The shading and line work suggest it originates from a 19th-century medical textbook or lecture chart.

Commonly used in medical history resources, anatomy education sites, or articles on the evolution of diagnostic methods; serves users seeking visual references for classical abdominal topography or historical medical illustration styles.