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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

    At birth, only the maxillary sinus and the ethmoid sinus are developed but not yet pneumatized; only by the age of seven are they fully aerated. The sphenoid sinus appears at the age of three, and the frontal sinuses first appear at the age of six, and fully develop during adulthood. [5]

  4. Microcornea, glaucoma, and absent frontal sinuses - Wikipedia

    en.wikipedia.org/wiki/Microcornea,_glaucoma,_and...

    Microcornea, glaucoma, and absent frontal sinuses is a very rare developmental genetic disorder that occurs during embryogenesis which is characterized by a combination of microcornea, glaucoma and missing/underdeveloped sinuses. Additional findings include increased palmar skin thickness and torus palatinus.

  5. 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 ...

  6. Frontonasal duct - Wikipedia

    en.wikipedia.org/wiki/Frontonasal_duct

    The frontonasal duct is a duct through which either frontal sinus drains into the nasal cavity. [2] [3] Each frontal sinus opens into the frontonasal duct by an opening (the opening of frontal sinus or frontal sinus aperture [4]) on the inferomedial part [3] of the floor of the sinus. [4]

  7. 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.

  8. This Popular Cold Medicine Doesn't Work—Here's What To Buy ...

    www.aol.com/lifestyle/popular-cold-medicine...

    Does phenylephrine work? Doctors explain how to choose between cold medicines like Dayquil and Sudafed PE for congestion, runny nose, and other symptoms.

  9. 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]