Lower thoracic / diaphragm focus
Thoracolumbar junction and breathing
The lower thoracic focus keeps the diaphragm and thoracolumbar transition visible in the lesion map. The front projection is an editorial teaching proxy and does not claim that a lesion has one fixed depth or side.
Point 4 of 8 in Osteopathic Lesion Theory — Still Lesion Map
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
A.T. Still, The Philosophy of Osteopathy (primary_canonical)
Chs. 1–3 set out Still’s osteopathic philosophy, including the body as an integrated whole and the relation of structure, function, and circulation; these chapters support the doctrine, not a fixed six-zone chart.
A.T. Still, Osteopathy: Research and Practice (primary_canonical)
Chs. 1–2 describe Still’s research-and-practice rationale for osteopathic examination and treatment; the source does not prescribe the front-view coordinates used here.
Carol Trowbridge, An American Original: The Life of A.T. Still and the First Osteopathic School (scholarly_modern)
Historical study of Still, early osteopathic institutions, and the changing meanings of lesion and osteopathic practice.