Citation, DOI, disclosures and article data
At the time the article was created Henry Knipe had no recorded disclosures.View Henry Knipe's current disclosures
At the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
- Taylor and Francis Publishing, Paid author of Imaging for Students 5th edition (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.View Craig Hacking's current disclosures
The nose, sometimes referred to as the external nose, is a feature of the face and is composed of soft tissues that extend externally from the skull. It is continuous posteriorly with the nasal cavity. The anterior (piriform) aperture is bounded above by the nasal bones and elsewhere by the two maxillae.
The external nose is formed by nasal bones (bridge of nose), lateral (upper) and greater (alar or lower) nasal cartilages and supported in the midline by the nasal septum. The mucocutaneous area of the nose lies beyond the hair-bearing area 4.
The anterior nares (or nostrils) form the entrance to the nose.
- facial artery (from external carotid artery)
- with anastomoses from the supraorbital and supratrochlear arteries (from internal carotid artery) 3
- facial veins to the internal jugular vein
- valveless venous anastomoses with orbital and ophthalmic veins (and thus the cavernous sinus) and the pterygopalatine venous plexus, making this a potential route of infectious spread 3
- receives lymphatics from the anterior nasal cavity and then in lymphatics that accompany the facial vein to the submandibular lymph nodes 2