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2. Frontal sinus - Wikipedia

   en.wikipedia.org/wiki/Frontal_sinus

   The frontal sinuses are one of the four pairs of paranasal sinuses that are situated behind the brow ridges. Sinuses are mucosa -lined airspaces within the bones of the face and skull. Each opens into the anterior part of the corresponding middle nasal meatus of the nose through the frontonasal duct which traverses the anterior part of the ...

3. Paranasal sinuses - Wikipedia

   en.wikipedia.org/wiki/Paranasal_sinuses

   Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity. [1] The maxillary sinuses are located under the eyes; the frontal sinuses are above the eyes; the ethmoidal sinuses are between the eyes and the sphenoidal sinuses are behind the eyes.

4. Sinus (anatomy) - Wikipedia

   en.wikipedia.org/wiki/Sinus_(anatomy)

   Ethmoid sinus cavities which are located between the eyes. Frontal sinus cavities which can be found above the eyes (more in the forehead region). Maxillary sinus cavities are located on either side of the nostrils (cheekbone areas). Sphenoid sinuses that are located behind the eyes and lie in the deeper recesses of the skull.

5. Semilunar hiatus - Wikipedia

   en.wikipedia.org/wiki/Semilunar_hiatus

   It is the location of the openings for the frontal sinus, maxillary sinus, and anterior ethmoidal sinus. It is bounded inferiorly and anteriorly by the sharp concave margin of the uncinate process of the ethmoid bone, superiorly by the ethmoidal bulla, and posteriorly by the ethmoidal process of the inferior nasal concha. [4]

6. Human nose - Wikipedia

   en.wikipedia.org/wiki/Human_nose

   The frontal sinuses are located in the frontal bone; the sphenoidal sinuses in the sphenoid bone; the maxillary sinuses in the maxilla; and the ethmoidal sinuses in the ethmoid bone. [2] [13] 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 ...

7. Why do my ears feel clogged? 5 Things you can do right now. - AOL

   www.aol.com/why-ears-feel-clogged-5-000000206.html

   Sinus Pressure . One of the most common causes of plugged ear sensations is allergies. If you have allergies, your body is doing its best to fight off the allergens. This can lead to inflammation ...

8. Skull - Wikipedia

   en.wikipedia.org/wiki/Skull

   The skull also contains sinuses, air-filled cavities known as paranasal sinuses, and numerous foramina. The sinuses are lined with respiratory epithelium. Their known functions are the lessening of the weight of the skull, the aiding of resonance to the voice and the warming and moistening of the air drawn into the nasal cavity.

9. Hegseth says he's 'completely cleared' in sex assault case ...

   www.aol.com/pete-hegseth-vance-meet-gop...

   President-elect Donald Trump's controversial pick to be secretary of the Department of Defense, Pete Hegseth, met with Republican senators on Capitol Hill on Thursday amid new details about ...