Palatine bone

Palatine Bone AR Atlas

The Palatine bone articulates with:

• The Sphenoid bone
• The Ethmoid
• The Maxilla,
• The Inferior nasal concha
• The Vomer
• ThePalatine.

• Palatine bone: The palatine bone consists of a horizontal part, a vertical part, and multiple processes.(1)

Perpendicular plate of palatine bone

• Perpendicular plate of palatine bone: The perpendicular plate of the palatine bone is the vertical part of the bone. It has two surfaces that take part in forming the nasal cavity and maxillary sinuses. (1)
• Nasal surface of perpendicular plate: The perpendicular plate’s nasal surface is the perpendicular plate’s medial surface that takes part in the formation of the nasal surface. (1)
• Pyramidal process: The pyramidal process is a posterolateral-oriented process that is located in the area where the lateral plate of the palatine bone meets the perpendicular plate of the palatine bone (1)
• Lesser palatine canals: The lesser palatine canals are tunnels that pass through the pyramidal process of the palatine bone. They open on the inferior surface of the bone via lesser palatine foramina. (1)
• Conchal crest of palatine bone: The conchal crest of palatine bone is a ridge that articulates with the inferior nasal concha. (1)
• Maxillary process of palatine bone: The maxillary process of the palatine bone is a process that articulates with the maxilla. (1)
• Ethmoidal crest of palatine bone: The ethmoidal crest is a ridge that articulates with the inferior concha. (1)

• Sphenopalatine notch: The sphenopalatine notch is a notch that is situated where the orbital process meets the sphenoidal process of the palatine bone (1,8)
• Greater palatine groove of palatine bone: The greater palatine groove of palatine bone is a groove that is situated on the posterior part of the maxillary surface of the palatine bone. The articulated skull forms the greater palatine canal after the articulation with the maxilla. (1)
• Maxillary surface of palatine bone: The maxillary surface of palatine bone is the lateral surface of the perpendicular plate of the bone that takes part in the formation of the maxillary surface. (1)
• Orbital process: The orbital process is a bony process located at the superior end of the vertical plate. It is oriented superolateral. It articulates with the maxilla, sphenoid, and ethmoid. (1)
• Sphenoidal process: The sphenoidal process is a horizontal process with the aspect of a plate that is oriented superomedial. It articulates with the sphenoid (body and vaginal procedure) (1)

A horizontal plate of palatine bone

• A horizontal plate of palatine bone: The horizontal plate is a flat, rectangular-shaped component that forms the posterior one-third of the hard palate.
• The nasal surface of the horizontal plate: The nasal surface of the horizontal plate of the palatine bone is the part that contributes to the formation of the floor of the nasal cavity.
• The palatine surface of palatine bone: The palatine surface of the horizontal plate of the palatine bone is part of the bone that forms the anterior two-thirds of the hard palate.
• Lesser palatine foramina: The lesser palatine foramina are small openings or perforations in the posterior region of the pyramidal process. (1, 23)
• Posterior nasal spine: The posterior nasal spine is a bony projection positioned at the posterior of the palatine surface of the palatine bone.
• Nasal crest of palatine bone: The nasal crest of palatine bone is a bony ridge that extends anteriorly from the posterior nasal spine along the midline of the horizontal plate of the palatine bone. It separates the left and right halves of the hard palate.
• Palatine crest: The palatine crest is a bony ridge that runs along the midline of the hard palate.

Bibliography

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The structure and organization of anatomical terms used in this text follow the guidelines provided by FIPAT (2019) in their publication: FIPAT. (2019). Terminologia Anatomica (2nd ed.). FIPAT.library.dal.ca. Federative International Programme for Anatomical Terminology. Retrieved May 7, 2023, from https://fipat.library.dal.ca/TA2/