Sphenoid Sinus Anatomy

Additionally pneumatization can also involve the posterior orbital wall pterygoid processes and lesser sphenoid wing. The sphenoid sinus is one of the four paired paranasal sinuses that is contained within the body of the sphenoid bone.

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The sinuses are separated from each other by a bony wall or.

Sphenoid sinus anatomy. The sphenoid sinuses are paired spaces formed within the body of the sphenoid bone communicating with the roof of the nasal cavity via the sphenoethmoidal recess in its anterior wall figure 1. The sphenoid sinuses are paired spaces formed within the body of the sphenoid bone. The apertures are high on the anterior walls of the sphenoid sinuses.

The anatomy of the sphenoid sinus is highly variable. Normal anatomy variants. The sphenoid sinuses are highly variable in their configuration.

The pituitary gland which produces many different hormones that control other glands. Significant variability exists regarding the dimensions of the sphenoid sinus attachment of the intersinus septum number of septa and pneumatization of the sphenoid bone. There are seven bones that form the orbit eye socket and the sphenoid is one of these bones.

Pneumatization starts at around 2 years of age and it develops more. The sphenoid sinuses vary in size and shape and owing to the lateral displacement of the intervening septum which may insert on the carotid canal they are rarely symmetrical. This variability has a direct impact on surgical planning for endoscopic skull base cases.

Paranasal air sinuses the sphenoidal sinuses are situated back of the nose in the sphenoidal bone which forms a forward part of the base of the skull and contains the depression or fossa for the pituitary gland. The sphenoid sinus is the most posterior paranasal sinus. The sphenoid sinuses are located in the sphenoid bone near the optic nerve and the pituitary gland on the side of the skull.

They cannot be palpated during an extraoral examination. Pneumatization can extend into the greater sphenoid wing resulting in lateral recesses.

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