The orbital process of the palatine bone is placed on a higher level than the sphenoidal, and is directed upward and lateralward from the front of the vertical part, to which it is connected by a constricted neck. It presents five surfaces, which enclose an air cell. Of these surfaces, three are articular and two non-articular. The articular surfaces are: In some cases the air cell opens on this surface of the bone and then communicates with the posterior ethmoidal cells. More rarely it opens on both surfaces, and then communicates with the posterior ethmoidal cells and the sphenoidal sinus.
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| - Processus orbitaire de l'os palatin (fr)
- Orbital process of palatine bone (en)
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| - The orbital process of the palatine bone is placed on a higher level than the sphenoidal, and is directed upward and lateralward from the front of the vertical part, to which it is connected by a constricted neck. It presents five surfaces, which enclose an air cell. Of these surfaces, three are articular and two non-articular. The articular surfaces are: In some cases the air cell opens on this surface of the bone and then communicates with the posterior ethmoidal cells. More rarely it opens on both surfaces, and then communicates with the posterior ethmoidal cells and the sphenoidal sinus. (en)
- Le processus orbitaire de l'os palatin (ou apophyse orbitaire du palatin) est un processus osseux en forme de pyramide triangulaire situé à la partie antérieure du bord supérieur de la lame verticale de l'os palatin. Il est séparé du processus sphénoïdal de l'os palatin par l'échancrure sphéno-palatine. Parfois les deux processus sont unis au-dessus de l'échancrure formant ainsi un foramen ou plusieurs foramens. Il présente cinq facettes : (fr)
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| - Orbital process of palatine bone (en)
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| - Orbital process of palatine bone (en)
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| - Left palatine bone. Posterior aspect. Enlarged. (en)
- Left palatine bone. Nasal aspect. Enlarged. (en)
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| - The orbital process of the palatine bone is placed on a higher level than the sphenoidal, and is directed upward and lateralward from the front of the vertical part, to which it is connected by a constricted neck. It presents five surfaces, which enclose an air cell. Of these surfaces, three are articular and two non-articular. The articular surfaces are: 1.
* the anterior or maxillary, directed forward, lateralward, and downward, of an oblong form, and rough for articulation with the maxilla 2.
* the posterior or sphenoidal, directed backward, upward, and medialward; it presents the opening of the air cell, which usually communicates with the sphenoidal sinus; the margins of the opening are serrated for articulation with the sphenoidal concha 3.
* the medial or ethmoidal, directed forward, articulates with the labyrinth of the ethmoid. In some cases the air cell opens on this surface of the bone and then communicates with the posterior ethmoidal cells. More rarely it opens on both surfaces, and then communicates with the posterior ethmoidal cells and the sphenoidal sinus. The non-articular surfaces are: 1.
* the superior or orbital, directed upward and lateralward; it is triangular in shape, and forms the back part of the floor of the orbit; and 2.
* the lateral, of an oblong form, directed toward the pterygopalatine fossa; it is separated from the orbital surface by a rounded border, which enters into the formation of the inferior orbital fissure. (en)
- Le processus orbitaire de l'os palatin (ou apophyse orbitaire du palatin) est un processus osseux en forme de pyramide triangulaire situé à la partie antérieure du bord supérieur de la lame verticale de l'os palatin. Il est séparé du processus sphénoïdal de l'os palatin par l'échancrure sphéno-palatine. Parfois les deux processus sont unis au-dessus de l'échancrure formant ainsi un foramen ou plusieurs foramens. Il présente cinq facettes :
* une facette inférieure ou palatine qui s'articule avec l'os maxillaire ;
* une facette antéro-supérieure ou ethmoïdale qui s'articule avec le labyrinthe de l'os ethmoïde ;
* une facette postéro-supérieure ou sphénoïdale présentant l'ouverture de la cellule aérienne communiquant avec le sinus sphénoïdal et qui s'articule avec la conque sphénoïdale ;
* une facette supéro-latérale ou orbitaire qui forme la partie arrière du plancher de l'orbite ;
* une facette inféro-latérale ou ptérygo-maxillaire formant la partie supérieure de la paroi antérieure de la fosse infratemporale. (fr)
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