septum

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septum

 [sep´tum] (L.)
1. a wall or partition dividing a body space or cavity. Some are membranous, some are osseous, and some are cartilaginous; each is named according to its location. See also septal defect. adj., adj sep´tal.
alveolar septum interalveolar septum.
atrial septum (septum atrio´rum cor´dis) interatrial septum.
atrioventricular septum the part of the membranous portion of the interventricular septum between the left ventricle and the right atrium.
deviated septum an injury or malformation of the nasal septum so that one part of the nasal cavity is smaller than the other; this is fairly common and seldom causes complications. Occasionally the deviation may handicap breathing, block the normal flow of mucus from the sinuses during a cold, or prevent proper drainage of infected sinuses. In some cases surgery (called partial or complete submucous resection) may be necessary to relieve the obstruction and reduce irritation and infection in the nose and sinuses.
interalveolar septum
1. one of the thin plates of bone separating the alveoli of the teeth in the mandible and maxilla. Called also interradicular septum.
2. one of the thin septa that separate adjacent pulmonary alveoli, containing connective tissue and the capillary network of the blood supply of the lung. Defs. 1 and 2 called also alveolar septum.
interatrial septum (septum interatria´le cor´dis) the partition separating the right and left atria of the heart; called also atrial septum.
interradicular septum interalveolar septum (def. 1).
interventricular septum (septum interventricula´re cor´dis) the partition separating the right and left ventricles of the heart; called also ventricular septum.
nasal septum a plate of bone and cartilage covered with mucous membrane that divides the nasal cavity.
septum lu´cidum septum pellucidum.
pellucid septum (septum pellu´cidum) the triangular double membrane separating the anterior horns of the lateral ventricles of the brain; called also septum lucidum.
septum pri´mum a septum in the embryonic heart, dividing the primitive atrium into right and left chambers. See also congenital heart defect.
rectovaginal septum the membranous partition between the rectum and vagina.
rectovesical septum a membranous partition separating the rectum from the prostate and urinary bladder.
septum of ventricles of heart (ventricular septum) (septum ventriculo´rum cor´dis) interventricular septum.

sep·tum

, gen.

sep·ti

, pl.

sep·ta

(sep'tŭm, -tī, -tă), Avoid the incorrect plurals septi and septae.
1. A thin wall dividing two cavities or masses of softer tissue.
2. In fungi, a wall; usually a cross-wall in a hypha.
3. In nasal anatomy, the sagittal partition dividing the nasal airways, formed by the vomerine crest, quadrilateral cartilage, and perpendicular plate of the ethmoid, and covered by mucoperichondrium and mucoperiosteum.
[L. saeptum, a partition]

septum

(sĕp′təm)
n. pl. sep·ta (-tə)
A thin partition or membrane that divides two cavities or soft masses of tissue in an organism: the nasal septum; the atrial septum of the heart.

sep·tum

, pl. septa (sep'tŭm, -tă)
1. [TA] A thin wall dividing two cavities or masses of softer tissue.
See also: transparent septum
2. In fungi, a wall; usually a cross-wall in a hypha. usage note The plural septa is sometimes mistaken for a singular form and wrongly pluralized as septae.
[L. saeptum, a partition]

septum

Any thin dividing wall or partition within or between parts of the body.

septum

any dividing wall or partition that occurs between structures or in a cavity.

Septum (ventricular septum)

A condition present at birth in which there is an extra fold of tissue down the center of the uterus that can cause infertility. This tissue can be removed with a wire electrode and a hysteroscope.

sep·tum

, pl. septa (sep'tŭm, -tă) Avoid the incorrect plurals septi and septae.
1. [TA] Thin wall dividing two cavities or masses of softer tissue.
2. In nasal anatomy, sagittal partition dividing nasal airways.
[L. saeptum, a partition]
References in periodicals archive ?
The site of tumor vascularity did not affect the diagnosis in cystic neoplasm, as the tumor vascularity was encountered almost equally in the wall and septae. However, in solid malignant neoplasms; the central vascularity was encountered in 83.33% cases while peripheral vascularity was present in 16.66% of cases (Table 6).
In our case, the cystic lesion represented "water lily" sign and rosette pattern with related fibrous elements (internal septae, detached membrane, and capsule), which were isointense and hypointense on T1- and T2-weighted images, respectively.
Lipomas do not enhance after injection of intravenous contrast material and may contain thin septae [6].
Panel (d) demonstrates the cut section of the tumor with a Swiss cheese pattern with multiple cystic spaces traversed by septae.
Lymphocyte predominant areas involving the bronchovascular bundles, interlobular septae, and subpleural areas are affected.
The collections had multiple non enhancing septae within them.
The Cellfina System is intended for long-term reduction of cellulite, up to two years, by precise release of targeted structural tissue (fibrous septae).
The margins of the radiolucency were well-corticated and separated by thick bony septae (figure 2A).
Vertical bundles of fibrous septae that run through subdermal fat and anchor the skin seem to cause the dimples and bulges that annoy up to 95% of women.
At places thin fibrous septae were seen imparting nodular configuration with focally entrapped benign ducts at periphery.