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The alae of the nose are supplied by nasal branches of CN V 2, the infraorbital nerve, and internal nasal branches of infraorbital nerve that supply the septum and the vestibule. [46] [13] The maxillary sinus is supplied by superior alveolar nerves from the maxillary and infraorbital nerves.
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 ...
Nose and nasal cavities. (Sphenoid sinus labeled at upper right.) The sphenoid sinus is a paired paranasal sinus occurring within the body of the sphenoid bone. It represents one pair of the four paired paranasal sinuses. [1] The pair of sphenoid sinuses are separated in the middle by a septum of sphenoid sinuses.
The pyramid-shaped maxillary sinus (or antrum of Highmore) is the largest of the paranasal sinuses, located in the maxilla. It drains into the middle meatus of the nose [1] [2] through the semilunar hiatus. It is located to the side of the nasal cavity, and below the orbit. [2]
The nasal septum contains bone and hyaline cartilage. [3] It is normally about 2 mm thick. [4] The nasal septum is composed of four structures: Maxillary bone (the crest) Perpendicular plate of ethmoid bone. Septal nasal cartilage (ie, quandrangular cartilage) Vomer bone. The lowest part of the septum is a narrow strip of bone that projects ...
They are innervated by the maxillary nerve (CN V2). The frontal sinuses, superior to the eyes, in the frontal bone, which forms the hard part of the forehead. They are innervated by the ophthalmic nerve (CN V1). The ethmoidal sinuses, which are formed from several discrete air cells within the ethmoid bone between the nose and the eyes
