Maxillary sinus — where, anatomy and pictures

What is maxillary sinus?

Often territorial focus of numerous diseases in the field of otorhinolaryngology is the maxillary sinus — in the medical field called volume paranasal sinuses of the nose, located in the maxillary bones. The name of this paired organ received from the surgeon and anatomist Nathaniel of Gamora that by research at Oxford in 1643, the year first presented a description of the disease in these bone cavities.

Because the maxillary sinus is located in the bones, closely neighboring teeth, and eye sockets, a man, in order to avoid serious (sometimes fatal) endocrine diseases, it is important to refer to the work of this body very carefully.

Anatomy of the maxillary sinus

Due to the anatomical structure of these baroreceptors cavities there is a possibility of asymptomatic development of such common diseases as sinusitis, thus, preventive measures are not redundant.

First of all, it is important to know that the maxillary sinus — steam chamber, this means that each person has such authority present in two «copies» (right and left).

Interestingly, the formation of maxillary sinus in humans is still in the womb, but this process is not completed at birth fully formed voids are considered even then as the man passed puberty.

If at the stage from the uterine to the final development of this body did not raise any anomalies, and the work itself and the structure of the cavities were not violated under the influence of any disease of the maxillary sinus opens directly into the nasal cavity from the inner part of the data cavitary formations.

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The photo to the right demonstrates where the maxillary sinus is located above these cavities molars of the upper jaw: the wall between the teeth and the cavities are so thin that the possibility of damage cavities exist even in dental surgery.

It is also known that the anatomical separation of on describes the five walls:

  • front;
  • posteroexternal;
  • top;
  • bottom;
  • medial.

Due to the fact that the bottom wall of the body is compared to the upper slimmer, the probability of occurrence of inflammation in this portion, is increased.

By itself, the anatomy of the maxillary sinuses is complex organic mechanisms. The inner wall of the bone void covered with a special mucous membrane, which is characterized by subtlety.

The cilia of the epithelium of this mucosa perform a transporting function: the resulting slime is moving from the bottom to the nasal cavity.

Modern science knows that this shell is characterized by a paucity of the content of the goblet cells, nerves and vessels, therefore dangerous diseases like sinusitis can be accompanied by obvious symptoms.

In a healthy condition, the maxillary sinus connects with the nasal cavity in its rear wall from the inner surface of the maxillary bones open hole in the nose. Under normal conditions this hole, and the entire cavity filled with circulating air.

Organ function

Understanding what is a maxillary sinus, what functions it performs, scientists have traditionally divided in opinion. Modern medicine still can not give one answer to such an important issue.

This is probably due to the fact that these voids simultaneously perform several important functions:

  1. Structural. Since the front parts of the skull belong to the group of the most voluminous parts, such voids make it much easier the weight: cubic volume of the cavities can sometimes reach 30 inches. In addition, the bone of the facial skull is also associated with the development of facial muscles, after all, are fastened to these muscles — sinus can give the bones a special form;
  2. Sound. It is believed that these cavities are voice resonance and receives reinforcement;
  3. Protective. Physicians believe that they also are protective for the eyeballs and teeth roots function: because these organs are considered to be sensitive to external impact structures, rapid temperature fluctuations, which would be the place to be during the exhalations and inhalations without data voids that could damage the work of those bodies. In fact, the cavity stabilize the temperature of the air;
  4. Baroreceptors. Sinuses refer to the additional sensory organ, which is able to respond to the pressure medium;
  5. Buffer. It is believed that the body also serves as a kind of buffer in case of mechanical damages (shocks, other traumas) facial bones.
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The main objective of the sinuses, thus, lies in protective functions: this body is the heating and humidification of breathing people. Goblet cells contained in the mucosa of these cavities produce mucus.

In turn, when an inflammatory process of the mucus can stagnate in one or both cavities, which if untreated will lead to different types of sinusitis, tumors, cysts. Also, the inflammatory process may occur when injected into the sinus foreign body.