Last update:

Palatine Bone Anatomy

Introduction to Palatine bone anatomy:

  • The two palatine bones (L., palatum “palate”) form portions of the hard palate, lateral walls of the nasal cavity, and floors of the orbits.
inferior and sagittal view of the skull with a label for the palatine bone
  • These small, L-shaped, facial bones are located between the palatine processes of the maxilla bones and the pterygoid processes of the sphenoid bones.
  • Each bone primarily consists of a horizontal plate and a perpendicular (or vertical) plate.

Markings of the Palatine Bone:

  1. Horizontal Plate: A horizontal projection that articulates with the palatine process of the Maxilla; forms the posterior portion of the hard palate (or roof of the mouth / floor of the nasal cavity). [Sagittal view/ Inferior view]
sagittal view of the skull with a label of the horizontal plate
sagittal view of the skull with a label of the horizontal plate - each bone has different color
  1. Perpendicular plate (vertical plate): A superior projection that forms the posterior portion of the lateral wall of the nasal cavity. [Sagittal view]
sagittal view of the skull with a label of the perpendicular plate
sagittal view of the skull with a label of the perpendicular plate - each bone has different color
  1. Greater palatine foramen (posterior palatine foramen): The largest opening along the posterior part of the horizontal plate; passageway for the greater palatine nerve and vessels. [Inferior view]
inferior view of the skull with a label of the Greater palatine foramen
inferior view of the skull with a label of the horizontal plate - each bone has different color
  1. Lesser palatine foramina: one or more small openings located posterior to the greater palatine foramen; passageways for branches of the lesser palatine nerve. [Inferior view]
inferior view of the skull with a label of the lesser palatine foramen
inferior view of the skull with a label of the lesser palatine foramen - each bone has different color

Test yourself:

Inferior view: [Show/Hide answers]

 

Inferior view of the skull with labels of horizontal plate, greater and lesser palatine foramina

Sagittal view: [Show/Hide answers]