Palatine bone
Palatine Bone
The Palatine bone (pronounced: /ˈpælətaɪn/ bone) is a paired, irregular bone of the facial skeleton in many animal species, including humans. It is located between the maxilla and the pterygoid process of the sphenoid bone.
Etymology
The term "palatine" originates from the Latin word "palatum" meaning "roof of the mouth", which is the location of the palatine bones.
Structure
The palatine bone is L-shaped, contributing to the floor and lateral wall of the nasal cavity, the roof of the mouth, and the floor of the orbit. It consists of two parts: the horizontal plate and the perpendicular plate. The horizontal plate forms the posterior part of the hard palate and the floor of the nasal cavity. The perpendicular plate forms part of the lateral wall of the nasal cavity and the orbital process contributes to a small part of the floor of the orbit.
Function
The palatine bone helps form the nasal cavity and the roof of the mouth. It is involved in the formation of the hard palate, the floor and lateral wall of the nasal cavity, and the floor of the orbit.
Related Terms
- Maxilla: The upper jaw bone in vertebrates, which also forms part of the nose and eye socket.
- Sphenoid bone: An unpaired bone of the neurocranium, situated in the middle of the skull towards the front, in front of the temporal bone and basilar part of the occipital bone.
- Pterygoid process: A process of the sphenoid bone, consisting of two plates.
- Nasal cavity: The inside of your nose, a large air-filled space above and behind the nose in the middle of the face.
- Orbit: The cavity or socket of the skull in which the eye and its appendages are situated.
External links
- Medical encyclopedia article on Palatine bone
- Wikipedia's article - Palatine bone
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