Human Back Muscles Anatomy Diagram - Detailed Medical Illustration #3294954 (License: Personal Use)

This finely detailed black-and-white engraving illustrates the superficial and deep muscle layers of the human posterior torso, with precise delineation of fiber direction, attachments, and overlapping structures. The figure is posed with arms raised to expose the scapular region and spinal musculature, emphasizing functional anatomy relevant to posture and movement. Numerical labels (e.g., 1, 2, 30, 51) indicate specific muscles or landmarks, typical of historical anatomical atlases.

Used in medical education, physical therapy training, and historical anatomy resources; serves users seeking visual reference for back muscle identification, kinesiology study, or comparative anatomy analysis.