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

Aug 12, 2019 · 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.

In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it.

The frontal sinus, maxillary sinus, and anterior ethmoid sinus cells drain beneath the middle turbinate into the middle meatus. Sometimes an ethmoid sinus cell can expand within the …

Nov 6, 2025 · In this article, we shall look at the anatomy of the paranasal sinuses – their structure, anatomical relations and innervation. Location of the paranasal sinuses. Explore, …

Knowing the location of each sinus and its drainage pathways helps identify the source of symptoms like facial pain, pressure, or nasal discharge. For instance, pain in the forehead …

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

Feb 12, 2025 · These fully annotated anatomical illustrations are presented as a comprehensive atlas of the nasal cavity, specially designed for medical students, medicine residents and …

Anatomy of the paranasal sinuses; drawing shows front and side views of the frontal sinus, ethmoid sinus, maxillary sinus, and sphenoid sinus. The nasal cavity and pharynx (throat) are …

Picture of Sinuses The sinuses are an air-filled cavity in a dense portion of a skull bone. They actually decrease the weight of the skull. The sinuses are formed in four right-left pairs. The …