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Interactive diagrams show sinus cavity locations and help visualize sinusitis, the most common type of sinus infection. We also go over sinusitis signs and care.
They are a collection of six to 12 small air cells that open independently into the nasal cavity. They are divided into front, middle, and rear groups. Like the nasal cavity, the sinuses are...
Most people have four pairs of sinus cavities in their heads ― or eight total. Two large frontal sinuses are located above your eyes and in your forehead. Two sphenoid and two ethmoid sinuses are set between your eyes and behind your nose.
3/14. What Is Sinusitis? It’s inflammation in your sinuses. Tiny, hair-like structures called cilia (magnified here) move mucus across sinus membranes and toward an exit. All of your sinus...
The photo identifies each of the four types of sinuses, which are correspondingly named after the bone where they are located. All four, collectively called the paranasal sinuses, connect through the hollow cavity of the skull. This cavity is called, as you may have guessed, the sinus cavity.
Inside the nose, the pink membranes lining the sinuses are called mucosa. They produce mucus, which helps keep the sinuses moist. The inside of the nose is called the nasal cavity. Along the sides of the nasal cavity are bone shelves called turbinates.
The sinus cavities, proper term paranasal sinuses, are hollow air-filled cavities in the skull located around the nasal cavity. These rather unassuming pockets in the skull bone may have several important functions and are also prone to diseases that affect the nasal cavity.