the.com/umbo
the tiny boss at your eardrum's center, where sound first gets personal.
ear anatomyDeepest inward point of your eardrum's cone.
shell versionAlso the bumpy hinge on clam shells.
shield ancestorNamed for ancient Roman shield bosses.
first contactWhere the malleus bone grips your eardrum.
light catcherDoctors spot it as a reflective triangle.