The nasal septum separates the left and right airways in the nose, dividing the two nostrils. It is depressed by the depressor septi nasi muscle.
https://en.wikipedia.org/wiki/Nasal_septum
Most people do not have a perfectly straight septum, but it may be misaligned due to a two main causes: 1  A person can be born with a deviated septum (congenital), or it can bend due to normal growth during childhood. 2  Another cause of deviated septum is injury or trauma, such as a broken nose.
http://www.medicinenet.com/deviated_septum/article.htm
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.
https://en.wikipedia.org/wiki/Nasal_septum
Wiktionary (0.00 / 0 votes) Rate this definition: septum (Noun). A wall separating two cavities; a partition; as, the nasal septum. septum (Noun). A partition that separates the cells of a fruit. septum (Noun).
http://www.definitions.net/definition/septum
1 The thin wall between the nostrils is made of cartilage and bone, and is called the septum. 2  When this is off-center or crooked, it is called a deviated septum.
http://www.medicinenet.com/deviated_septum/article.htm
The septum is made up of bone and cartilage. When this cartilage or bone is off-center (deviated to one side) or crooked, it is referred to as a deviated septum.
http://www.medicinenet.com/deviated_septum/article.htm
Deviated septum facts. 1  The thin wall between the nostrils is made of cartilage and bone, and is called the septum. 2  When this is off-center or crooked, it is called a deviated septum. 3  A deviated septum may be present at birth, may become crooked during growth, or may be caused by injury to the nose and face.
http://www.medicinenet.com/deviated_septum/article.htm
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.
https://en.wikipedia.org/wiki/Nasal_septum
Septum, heart: The septum of the heart is the dividing wall between the right and left sides of the heart.
http://www.medicinenet.com/script/main/art.asp?articlekey=9118
1 When this is off-center or crooked, it is called a deviated septum. 2  A deviated septum may be present at birth, may become crooked during growth, or may be caused by injury to the nose and face.
http://www.medicinenet.com/deviated_septum/article.htm
what septum
A septum is a wall separating two cavities.