What is sphenoid sinus?

sphenoid sinus is a small cranial cavity that has approximately equivalent size of large grapes in adults. On both sides of the nose is one sphenoid sinus. The purpose of the sphenoid sinus is to drain the mucus from the back of the nose through the opening of the nostium. It is an unpaired cranial bone, which means there is only one. It helps to connect the bones of the skull with the face bone. The sphenoid bone has three pairs of bone projections and a hollow space in which a spinoid sinus is located. Above the eyes in the lower area of ​​the forehead will sit the frontal cavity. Under the eyes on both sides of the nose, the maxillary cavity sits.

between the eyes, on both sides of the nose, sit ethmoidal cavities. Per ethmoidal cavity of the sedishenoidal cavity. Each sinus pair is named after the skull bones that fit them closest to them. Sphenoid sinus sits in the middle of the skull under the pituitary. Surgeons who need access to the pituitary will often go through the depth sinus because of their proximity to the gland and because the bony wall separating the sinus from nThe axis cavity is very thin and easy to pierce.

In most people, the sphenoid cavities are asymmetric, which means irregular, because the length, thickness and shape of the septum or bony wall, their separation is very variable. Sfenoid cavities are not common. If infection occurs, it may occur without fever, cold or general overload of sinus. The most common symptom is the persistent poor headache that deteriorates with posture changes such as bending or stopwatch. Headaches caused by spheinfection Noidal sinus usually occurs behind the eyes and over the forehead.

All paranasal cavities are covered on their inner walls in a tissue called epithelium. This epithelial lining excludes the hock that maintains sinus sinus damp. Each cell on the surface of the epithelium has a structure called Cilium, which can push sinus mucus over the walls.

Movement of sinus mucus is calledMukocilial will. It is an active process that moves mucus with a particular pattern. Gravity or head position has no effect on the mucociliary process.