Upper thoracic lesion focus
Rib and upper-back mechanics
This upper-thoracic mark represents a manual-examination region where rib, vertebral, and respiratory relationships may be considered together. Its position is a diagrammatic grouping, not an anatomical diagnosis or a prescribed treatment target.
Point 3 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.