Xaismboun special region was created in 1994-06. Change Notice 1 to FIPS PUB 10-4, dated 1998-12-01, lists a division of Laos into 16 provinces, one city, and one special zone. ISO 3166-2 Newsletter Number I-2 was published on 2002-05-21. It showed Xaismboun special region, but called it a province.
THE PARANASAL SINUSES. There are four pairs of paranasal sinuses, the frontal sinuses are located above the eyes, in the forehead bone. The maxillary sinuses (antra of Highmore) are located in the cheekbones, under the eyes. The ethmoid sinuses, also called ethmoid labyrinth are located between the eyes and the nose.here are four pairs of paranasal sinuses, the frontal sinuses are located above the eyes, in the forehead bone. The maxillary sinuses (antra of Highmore) are located in the cheekbones, under the eyes.
Think of where your sinus is located. There are actually several sinuses located in the skull. Most people never have to be concerned about any of them except the maxillary sinus which is connected to your nose. From time to time, most people get congestion and a buildup of pressure in the maxillary sinus. This pressure is usually a passing thing and presents the sufferer with no more than an irritating inconvenience. However, for some people, pressure in the maxillary sinus leads to pain in the upper posterior (back) teeth.