Septum
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Septum
Septum (/ˈsɛptəm/, plural: septa) is a term used in anatomy to refer to a wall, dividing a cavity or structure into smaller ones.
Etymology
The term "septum" is derived from the Latin word 'saepire' meaning 'to enclose' or 'to fence'.
Anatomy
In anatomy, a septum is a wall of tissue that separates a physical space or organ into two or more parts. Septa can be found in numerous anatomical structures, including the heart, nose, and brain.
- In the heart, the septum divides the organ into its four chambers: the left and right atria and the left and right ventricles. This is known as the interatrial septum and interventricular septum respectively.
- In the nose, the septum separates the left and right airways in the nose, dividing the two nostrils. It is composed of a thin bone in the back and a cartilage in the front, known as the nasal septum.
- In the brain, the septum pellucidum is a thin, triangular, vertical double membrane separating the anterior horns of the left and right lateral ventricles of the brain.
Related Terms
- Septoplasty: A surgical procedure to correct a deviated septum.
- Septate: Having or divided by a septum or septa.
- Septal defect: A hole in the septum between the heart's two upper chambers (atria) or two lower chambers (ventricles).
See Also
External links
- Medical encyclopedia article on Septum
- Wikipedia's article - Septum
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