David B. Weishampel, The Nasal Cavity of Lambeosaurine Hadrosaurids (Reptilia: Ornithischia): Comparative Anatomy and Homologies, Journal of Paleontology, Vol. 55, No ...

This X-ray of a human skull highlights the main nasal cavity (orange) and the sinuses: frontal (pink), ethmoid (yellow), maxillary (green) and sphenoid (purple). Asian apes do not have frontal or ...

The ethmoid sinus (one of six sets of sinuses) is part of the paranasal sinus system and is located between the nose and eyes. It is very small at birth and becomes walnut-sized during puberty.

Studies have shown that a recently identified type of human stem cell located in the nasal cavity can help repair brain damage and restore associated learning and memory when transplanted into ...

Medscape General Medicine. 1997;1 (2) Anatomy and Pathology There are 4 sets of sinuses ordinarily present in humans, but congenital absence or hypoplasia of one or more sinus cavities is not ...

Your sinonasal cavity is filled with tiny hairs called cilia that help block organisms from entering the sinuses. These cilia aren’t 100 percent effective. Bacteria can still enter your nose and ...

The new technique uses X-rays of the frontal sinus, a large cavity behind the forehead which fills with mucus that drains into the nose, to determine the age of developing skulls.