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 …

Learn more about the anatomy of the sinuses.

Aug 15, 2024 · Your paranasal sinuses (or just your “sinuses,” as most people call them) are four paired cavities in your face. They include the frontal, sphenoid, ethmoid and maxillary sinuses.

Jul 24, 2023 · Sinuses are located throughout the body and perform varying functions. Sinuses are typically associated with the cavities within the skull. The word “sinus” is most commonly …

Uncover the hidden architecture within your head. Gain essential insights into the structure and purpose of your sinus cavities for better health understanding.

The paranasal sinuses are pairs of air-filled cavities with varying morphologies, and are located within the bones of the skull. They are lined by a respiratory epithelium and have drainage …

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, …

Aug 12, 2019 · There are four pairs of sinuses (named for the skull bones in which they're located). Interactive diagrams show sinus cavity locations and help visualize sinusitis, the most …

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 …