Heart — Busiris
Ib and the birthplace tradition
The anatomical identity is the heart (ib), placed in the cardiac region as the centre of Osirian personhood and renewed life. Busiris is the relic-site claim rendered here because Plutarch preserves a tradition locating Osiris's body there; the heart-to-Busiris pairing is an editorial correspondence rather than a stated ancient anatomical assignment.
Point 6 of 14 in Osiris — the fourteen scattered parts
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Plutarch, De Iside et Osiride §21 (secondary_translation)
Plutarch reports Eudoxus's claim that Osiris's body lies at Busiris, his birthplace.
Coffin Texts (primary_canonical)
Osirian funerary identity treats the heart and bodily integrity as central to continued life; it does not identify Busiris as a heart relic site.