Sinusitis is an inflammation of the tissues in your sinuses (spaces in your forehead, cheeks and nose usually filled with air). It causes facial pain, a stuffy or runny nose, and sometimes a fever …

Aug 12, 2019 · The sinuses are hollow spaces in the skull and the face bones around your nose. There are four pairs of sinuses, named for the bones that they’re located in.

A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage. In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial …

The sinuses are air-filled cavities located within the bones of the face. Learn more about the anatomy of the sinuses.

The nasal cavity is a potential space situated above the oral cavity and hard palate and below the skull base and intracranial compartment. It is separated in the midline by the nasal septum into …

Detailed anatomical illustration of human sinus cavities: maxillary, frontal, ethmoid, and sphenoid sinuses, labeled with functions and locations on white background.

Like the nasal cavity, the sinuses are lined with a mucous membrane composed of cells that produce mucus and have cilia. Incoming dirt particles are trapped by the mucus and then are …

These cavities are extensions of the nasal cavity and are lined with mucous membranes. Understanding the specific locations and various roles of these sinuses contributes to …

Your sinuses are air-filled spaces between the bones in your head. The sinuses make mucus that drains into the nose. This helps keep the nose moist and free of dust and germs.

Aug 15, 2024 · Your paranasal sinuses are four paired cavities in your face. They include the frontal, sphenoid, ethmoid and maxillary sinuses. They drain into your nasal cavity.