top of the head; vertex; parietal
Anatomical term for the crown or top of the head. Cross-referenced with 頭頂 (とうちょう), which is more common in everyday language.
See also: 頭頂
The bones of the vertex are part of the skull.
The vertex is clearly shown in this anatomical diagram.
The kanji 顱 means 'skull' or 'forehead', and 頂 means 'top' or 'crown'. The reading ろちょう is the on'yomi. The exact historical derivation is uncertain, but the term is used in medical contexts.