This article includes a list of references, but its sources remain unclear because it has insufficient inline citations. (September 2017) (Learn how and when to remove this template message)
Bones and cartilages of septum of nose. Right side.
branch of superior labial
Anterior half to submandibular nodesPosterior half to retropharyngeal and deep cervical lymph nodes
The nasal septum is composed of five structures:
The postero-superior part of this cartilage is ossified to form the perpendicular plate of the ethmoid; its antero-inferior portion persists as the septal cartilage, while the vomer is ossified in the membrane covering its postero-inferior part.
About the third month these unite below, and thus a deep groove is formed in which the cartilage is lodged.
As growth proceeds, the union of the lamellae extends upward and forward, and at the same time the intervening plate of cartilage undergoes absorption.
By the onset of puberty the lamellae are almost completely united to form a median plate, but evidence of the bilaminar origin of the bone is seen in the everted alae of its upper border and in the groove on its anterior margin.
The nasal septum can depart from the centre line of the nose in a condition that is known as a deviated septum caused by trauma. However, it is normal to have a slight deviation to one side. The septum generally stays in the midline until about the age of seven, at which point it will frequently deviate to the right.
A perforated nasal septum can be caused by an ulcer, trauma due to an inserted object, long-term exposure to welding fumes, or cocaine use. There is a procedure that can be of help to those suffering from perforated septum. A silicone button can be inserted in the hole to close the open sore. An operation to the nasal septum is known as a septoplasty.
The nasal septum can be affected by both benign (fibroma, inflammatory hemangioma of the nasal septum—"bleeding polyp", etc.) and malignant tumors (squamous cell carcinoma, esthesioneuroblastoma, etc.).
|Wikimedia Commons has media related to Nasal septum.|
None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.
All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.
The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.