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  2. Nasal congestion - Wikipedia

    en.wikipedia.org/wiki/Nasal_congestion

    Nasal congestion. Other names. Nasal blockage, nasal obstruction, blocked nose, stuffy nose, plugged nose. Medical products for diminution of nasal congestion. Specialty. Otorhinolaryngology. Nasal congestion is the partial or complete blockage of nasal passages, leading to impaired nasal breathing, usually due to membranes lining the nose ...

  3. Sinusitis - Wikipedia

    en.wikipedia.org/wiki/Sinusitis

    Sinusitis (or rhinosinusitis) is defined as an inflammation of the mucous membrane that lines the paranasal sinuses and is classified chronologically into several categories: [ 22 ] Acute sinusitis – A new infection that may last up to four weeks and can be subdivided symptomatically into severe and nonsevere.

  4. Nasal cycle - Wikipedia

    en.wikipedia.org/wiki/Nasal_cycle

    According to Heetderks, the cycle is the result of alternating congestion and decongestion of the nasal conchae or turbinates, predominantly the inferior turbinates, which are by far the largest of the turbinates in each nasal fossa. Turbinates consist of bony projections covered by erectile tissue, much like the tissues of the penis and clitoris.

  5. Sinus (anatomy) - Wikipedia

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

    Sinus (anatomy) A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage. In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it. Most individuals have four paired cavities located in the cranial bone or skull.

  6. Upper respiratory tract infection - Wikipedia

    en.wikipedia.org/wiki/Upper_respiratory_tract...

    An upper respiratory tract infection (URTI) is an illness caused by an acute infection, which involves the upper respiratory tract, including the nose, sinuses, pharynx, larynx or trachea. [ 3 ][ 4 ] This commonly includes nasal obstruction, sore throat, tonsillitis, pharyngitis, laryngitis, sinusitis, otitis media, and the common cold. [ 5 ...

  7. 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. The sinuses are named for the facial bones and sphenoid bone in ...

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