in a complex roentgenological investigation of 12 anatomical preparations of the cranium and of 100 isolated maxillary bones ( including multiplane roentgenography and the artificial contrasting of the antrum of highmore ) it has been established that in adult people the maxillary sinuses have as a rule , a shape of an irregular truncated pyramid ( 96 % ) , rarely - a rounded shape .
C0037303
cranium
C0024947
maxillary bones