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  2. Maxillary sinus - Wikipedia

    en.wikipedia.org/wiki/Maxillary_sinus

    Extension into the maxillary alveolar process may cause the roots of the molars and even premolars to lie just beneath the floor of the sinus or even project through the floor and into the sinus; in such cases, the roots of the teeth are typically surrounded by a thin layer of bone, but may sometimes lie directly underneath the mucous membrane ...

  3. Nasal cavity - Wikipedia

    en.wikipedia.org/wiki/Nasal_cavity

    There is a rich blood supply to the nasal cavity. Blood supply comes from branches of both the internal and external carotid artery, including branches of the facial artery and maxillary artery. The named arteries of the nose are: Sphenopalatine artery and greater palatine artery, branches of the maxillary artery.

  4. Posterior superior alveolar artery - Wikipedia

    en.wikipedia.org/wiki/Posterior_superior...

    The posterior superior alveolar artery (posterior dental artery) is a branch of the maxillary artery. [1] [2] It is one of two or three superior alveolar arteries. It provides arterial supply to the molar and premolar teeth, maxillary sinus and adjacent bone, and the gingiva. [2]

  5. Human nose - Wikipedia

    en.wikipedia.org/wiki/Human_nose

    A narrow opening called a sinus ostium from each of the paranasal sinuses allows drainage into the nasal cavity. The maxillary sinus is the largest of the sinuses and drains into the middle meatus. Most of the ostia open into the middle meatus and the anterior ethmoid, that together are termed the ostiomeatal complex. [32]

  6. Paranasal sinuses - Wikipedia

    en.wikipedia.org/wiki/Paranasal_sinuses

    The maxillary sinuses, the largest of the paranasal sinuses, are under the eyes, in the maxillary bones (open in the back of the semilunar hiatus of the nose). They are innervated by the maxillary nerve (CN V2). [2] The frontal sinuses, superior to the eyes, in the frontal bone, which forms the hard part of the forehead.

  7. Lateral nasal branch of facial artery - Wikipedia

    en.wikipedia.org/wiki/Lateral_nasal_branch_of...

    It supplies the ala and dorsum of the nose, anastomosing with its fellow, with the septal and alar branches, with the dorsal nasal branch of the ophthalmic artery, and with the infraorbital branch of the internal maxillary. If the posterior lateral nasal artery is superficial in the nasal wall, a laceration may occur during an aggressive curettage.

  8. Kiesselbach's plexus - Wikipedia

    en.wikipedia.org/wiki/Kiesselbach's_plexus

    There is contention as whether this is truly part of Kiesselbach's plexus. Most sources quote that it is not part of the plexus, but rather one of the blood supplies for the nasal septum itself. [2] It runs vertically downwards just behind the columella, and crosses the floor of the nose. It joins the venous plexus on the lateral nasal wall.

  9. Greater palatine artery - Wikipedia

    en.wikipedia.org/wiki/Greater_palatine_artery

    The greater palatine artery is a branch of the descending palatine artery (a terminal branch of the maxillary artery) and contributes to the blood supply of the hard palate and nasal septum. Course [ edit ]