Why is the maxillary sinus more susceptible to sinusitis?

The maxillary sinus drains into the nose through a hole called the ostia. When the ostia becomes clogged, sinusitis can occur. The ostia of the maxillary sinus often clog because the ostia are located near the top of the maxillary sinus, thus making proper drainage difficult.

What is the reason that the maxillary sinus frequently becomes infected?

Infections in your respiratory tract — most commonly colds — can inflame and thicken your sinus membranes and block mucus drainage. These infections can be caused by viruses or bacteria. Allergies such as hay fever. Inflammation that occurs with allergies can block your sinuses.

Which sinus is most prone to infection?

The cheekbone (maxillary) sinuses are the most commonly affected. Acute sinusitis means that the infection develops quickly (over a few days) and lasts a short time. Many cases of acute sinusitis last a week or so but it is not unusual for it to last 2-3 weeks (that is, longer than most colds).

Is maxillary sinusitis common?

Maxillary sinusitis is common and the dentist needs to be able to distinguish it from dental disease. It is usually an acute condition, but chronic sinusitis may also develop following an acute episode and may persist or recur if drainage from the antrum to the nasal cavity is poor or when a foreign body is retained.

What is maxillary air sinus?

(MAK-sih-LAYR-ee SY-nus) A type of paranasal sinus (a hollow space in the bones around the nose). There are two large maxillary sinuses, one in each of the maxillary bones, which are in the cheek area next to the nose. The maxillary sinuses are lined with cells that make mucus to keep the nose from drying out.

What is paranasal sinus?

Listen to pronunciation. (PAYR-uh-NAY-zul SY-nus) One of many small hollow spaces in the bones around the nose. Paranasal sinuses are named after the bones that contain them: frontal (the lower forehead), maxillary (cheekbones), ethmoid (beside the upper nose), and sphenoid (behind the nose).

Which paranasal air sinus is most prone to infection?

The biggest sinus cavity is the maxillary cavity, and it is one of the cavities that most often becomes infected.

What is maxillary sinusitis?

Maxillary Sinusitis is the inflammation of the paranasal sinuses caused by a virus, bacteria, or fungus. The infection can also result after an allergic reaction – when the immune system attacks the healthy body cells. This infection may be associated with both bacterial and fungal infections.

What is a maxillary sinus infection?

What is the purpose of maxillary sinus?

The maxillary sinuses might simply serve to improve the respiratory function of the nose. A flow of inspiratory air does not occur. The maxillary sinuses are decisively involved in the production of nitrogen monoxide (NO) and thus in supporting the immune defense of the nasal cavity.

What is the function of paranasal sinuses?

They are centered on the nasal cavity and have various functions, including lightening the weight of the head, humidifying and heating inhaled air, increasing the resonance of speech, and serving as a crumple zone to protect vital structures in the event of facial trauma.

Why are paranasal sinuses susceptible to infection?

Paranasal sinuses are prone to inflammation and infection. The mucus drainage is interrupted when the paranasal sinuses become blocked from secretions or a mass, causing sinusitis.

What causes maxillary sinus infection?

Infection of the maxillary sinuses are usually related to problems with drainage. This may be caused by an obstruction, inflammation, polyps, a deviated septum, or abnormally thick mucus caused by a virus. Maxillary sinusitis can even be caused by dental disease, and is sometimes first diagnosed by a dentist.

What is the difference between maxillary and paranasal sinuses?

The maxillary sinus is the largest of the paranasal sinuses. The two maxillary sinuses are located below the cheeks, above the teeth and on the sides of the nose. The maxillary sinuses are shaped like a pyramid and each contain three cavities, which point sideways, inwards, and downwards.

What are the most frequently infected paranasal sinuses in humans?

1 Department of Ophthalmology, Sussex Eye Hospital, Brighton, UK. Objective: The maxillary sinuses are the most frequently infected paranasal sinuses in humans.

What are the dimensions of the maxillary air sinuses?

Maxillary air sinuses are the largest paranasal sinuses. Location: Are located in the body of maxilla lateral to the nasal cavity and inferior to the floor of orbit. Dimensions: Capacity-15ml. Height- 3.5cm, Anterior posterior depth – 3.5cm, Width- 2.5cm.