sphenoidbihålorna
The sphenoid sinuses, known in Swedish as sphenoidbihålorna, are a pair of air-filled cavities located within the sphenoid bone of the skull. This bone is situated at the base of the skull, posterior to the nasal cavity and inferior to the cranial cavity. The sphenoid sinuses are the most posterior of the paranasal sinuses.
These sinuses are lined with mucous membrane and are responsible for producing mucus, which helps to moisten
Inflammation of the sphenoid sinuses is called sphenoiditis. This condition can cause symptoms such as deep