[ Synopsis ]
  1. Nasal cavity의 floor와 lat. wall의 post.part형성
  2. Horizontal plate,Perpendicular plate와 3개의 Proc.로 구성
  3. 구개의 뒤쪽 1/3의 roof 형성
  4. 구개골 ( 口蓋骨 )

[ Nomina ] I . Horizontal Plate

  1. Nasal Surf.
    1. Nasal crest
    2. Post.nasal spine

  2. Palatine Surf.
    1. Palatine crest
    2. Opening of greater palatien canal

  3. Ant.Border

  4. Med.Border

  5. Post.Border

II . Perpendicular Plate
  1. Nasanl Surf.(Med.Surf.)
    1. Conchal crest
    2. Ethmoidal crest
    3. Sup.meatus
    4. Middle meatus
    5. Inf.meatus

  2. Maxillary Surf.(Lat.Surf.)
    1. greater palatine groove
    2. Articular surf. for maxilla

  3. Orbital Proc.
    1. Orbital surf.
    2. Palatine surf.

  4. Sphenoidal Proc.
    1. Palatinovaginal groove

  5. Sphenopalatine Notch

III . Pyramidal Proc.
  1. Lesser palatine canal
  2. Groove for med. pterygoid lamina
  3. Groove for lat. pterygoid lamina
  4. Pterygoid fossa