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The sphenopalatine foramen is situated posterior to the middle nasal meatus orbital process of palatine bone, anterior to the sphenoidal process of palatine bone, inferior to the body and concha [clarification needed] of the sphenoid bone, and superior to the superior margin of the perpendicular plate of palatine bone. [1]
Each fossa is a cone-shaped paired depression deep to the infratemporal fossa and posterior to the maxilla on each side of the skull, located between the pterygoid process and the maxillary tuberosity close to the apex of the orbit. [1] It is the indented area medial to the pterygomaxillary fissure leading into the sphenopalatine foramen.
The sphenopalatine artery passes through the sphenopalatine foramen into the cavity of the nose, at the back part of the superior meatus.Here it gives off its posterior lateral nasal branches which spread forward over the conchæ and meatuses, anastomose with the ethmoidal arteries and the nasal branches of the descending palatine, and assist in supplying the frontal, maxillary, ethmoidal, and ...
The sphenopalatine foramen is the opening between the sphenoid bone and orbital processes of the palatine bone; it opens into the nasal cavity and gives passage to branches from the pterygopalatine ganglion and the sphenopalatine artery from the maxillary artery.
[1] The medial border articulates with ala of vomer. [1] The orbital and sphenoidal processes are separated from one another by the sphenopalatine notch. Sometimes the two processes are united above, and form between them a complete foramen, or the notch may be crossed by one or more spicules of bone, giving rise to two or more foramina.
The (medial and lateral) posterior superior nasal nerves are branches of the maxillary nerve (CN V2) [3]: 496 that arise in the pterygopalatine fossa from pterygopalatine ganglion [3]: 369–370 and pass through the sphenopalatine foramen into the nasal cavity [3]: 496 to innervate the nasal septum (the medial nerves), and the posterosuperior portion of the lateral wall of the nasal cavity ...
The other teeth are paired closely with each other in both the upper and lower rows. [1] The dental formula of Palaeotherium is 3.1.4.3 3.1.4.3 for a total of 44 teeth, consistent with the primitive dental formula for early-middle Palaeogene placental mammals. [3] [4] The post-canine diastemata of Palaeotherium are small.
Foramina Number Vessels Nerves frontal-supraorbital foramen: 2: supraorbital artery supraorbital vein: supraorbital nerve: frontal: anterior cranial fossa: foramen cecum: 1: emissary veins to superior sagittal sinus from the upper part of the nose [3] ethmoid: anterior cranial fossa (osama) foramina of cribriform plate ~20-olfactory nerve ...