Frontal Sinus

Source:http://linkedlifedata.com/resource/umls/id/C0016734

MSH: One of the paired, but seldom symmetrical, air spaces located between the inner and outer compact layers of the FRONTAL BONE in the forehead.,NCI: The paired, mucosal lined air spaces located above the orbit and communicating with the nasal passages. (NCI),NCI: A type of paranasal sinus (a hollow space in the bones around the nose). There are two, large frontal sinuses in the frontal bone, which forms the lower part of the forehead and reaches over the eye sockets and eyebrows. The frontal sinuses are lined with cells that make mucus to keep the nose from drying out.,NCI: The paired, mucosal lined air spaces located above the orbit and communicating with the nasal passages.

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