Human Pelvic and Vertebral Skeleton Diagram - Medical Anatomy Reference #1270470 (License: Personal Use)

This vintage-style anatomical illustration depicts the posterior aspect of the human axial and appendicular skeleton, focusing on the lumbar vertebrae, sacrum, and pelvic bones. Key landmarks include the sacroiliac joint (labeled t.p. for *tuberositas posterior* or posterior tubercle), ilium (Il), ischium (Isch.), and proximal femur (Fe), illustrating structural relationships critical for biomechanics and clinical diagnosis. The clean linework and classical labeling style reflect 19th- to early-20th-century anatomical textbooks.

Used in medical education, anatomy textbooks, orthopedic reference sites, and health blogs to explain pelvic structure, spinal alignment, or musculoskeletal disorders; matches user intent for learning skeletal anatomy or identifying bone pathologies.