What is the anatomy of maxillary sinus?

What is the anatomy of maxillary sinus?

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 is maxillary sinus surgery?

Maxillary antrostomy is a surgical procedure to enlarge the opening (ostium) of the maxillary sinus. This allows for further surgical intervention within the maxillary sinus cavity as well as improved sinus drainage.

What artery supplies the maxillary sinus?

Arterial Supply of the Antrum There are 3 primary arterial suppliers to the maxillary sinus: the posterior superior alveolar artery, infraorbital artery, and posterior lateral nasal.

Where does maxillary sinus open?

The opening of the maxillary sinus is near the top of the base, in the center of the semilunar hiatus, which grooves the lateral wall of the middle nasal meatus. Relationships of the maxillary sinus are as follows: The superolateral surface (roof) is related above to the orbit.

What is ostium in maxillary sinus?

The ostium of the maxillary sinus is on the highest part of the medial wall of the sinus and is therefore poorly placed from the point of view of free drainage; in addition it does not open directly into the nasal fossa but into the narrow ethmoidal infundibulum, inflammation of which can further interfere with …

What is sinus surgery called?

The most common nasal procedures include turbinate reduction and correcting any septal deviations (septoplasty).

What are the 3 parts of the maxillary artery?

Pterygopalatine (3 part) of the maxillary artery[4]:

• Pharyngeal artery: enters the palatovaginal canal.
• Greater palatine artery: enters the greater palatine foramen.
• Artery of the pterygoid canal.
• Sphenopalatine artery: enters the sphenopalatine foramen.
• Posterior superior alveolar artery.

Where is the maxillary artery located?

The maxillary artery is one of two terminal branches of the external carotid artery, along with the superficial temporal artery. The maxillary artery originates deep to the neck of the mandible. On its course, the maxillary artery provides a number of branches that supply many structures within the head and face.

Where is the ostium of the maxillary sinus?

What is coronary ostium?

An ostium (pl. ostia) is a generic medical term for “hole” – for example, there are coronary ostia in the aorta through which blood flows to the coronary arteries. Most people are born with two coronary ostia, one each for the left coronary artery and the right coronary artery.

Where is the ostia of the maxillary sinus?

Where is the maxillary sinus?

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.

Do you get a catheter during sinus surgery?

Under general anesthesia, a temporary tube is inserted into your mouth/throat to maintain your breathing. If the planned surgery is for more than 3 hours duration, a urinary catheter may also be placed while you are asleep. It is usually removed in before you leave the recovery room.

How is sinus surgery performed?

The sinus surgeon will use an endoscope — a thin camera rod with a light at the end — to magnify and better see the sinus tissues. Specialized instruments open the sinuses widely by safely and effectively removing causes of sinus blockage like mucous membrane swelling, nasal polyps and scar tissue.

How many types of sinus surgery are there?

Two kinds of rhinoplasty exist: cosmetic and functional. Rhinoplasty at its core is a procedure that restructures the bones and cartilage that make up the nose. Functional rhinoplasty is performed by ENT surgeons with the expressed interest of helping the patient remove abnormalities that cause issues with breathing.

What are the 5 branches of the maxillary artery?

Five branches, each of which enters a bony foramen:

• deep auricular artery (enters squamotympanic fissure)
• anterior tympanic artery (enters petrotympanic fissure)
• middle meningeal artery (enters foramen spinosum)
• accessory meningeal artery (enters foramen ovale)
• inferior alveolar artery (enters mandibular foramen)

What are the major branches of the maxillary artery?

Maxillary artery branches mnenonic

• Deep auricular artery.
• Interior tympanic artery.
• Middle meningeal artery.
• Inferior alveolar artery.
• Accessory meningeal artery.
• Masseteric artery.
• Pterygoid artery.
• Deep temporal artery.