annulus

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Related to anulus: annulus, Anulus tendineus

annulus

[′an·yə·ləs]
(anatomy)
Any ringlike anatomical part.
(botany)
An elastic ring of cells between the operculum and the mouth of the capsule in mosses.
A line of cells, partly or entirely surrounding the sporangium in ferns, which constricts, thus causing rupture of the sporangium to release spores.
A whorl resembling a calyx at the base of the strobilus in certain horsetails.
(mathematics)
The ringlike figure that lies between two concentric circles.
(mycology)
A ring of tissue representing the remnant of the veil around the stipe of some agarics.
References in periodicals archive ?
Cs-Szabo, "Age-related changes in the extracellular matrix of nucleus pulposus and anulus fibrosus of human intervertebral disc," Spine, vol.
As a result, because the anular rings are not reinforced in the posterolateral direction, the anulus fibrosus is susceptible to injury, and common injury mechanisms involve excessive, highly forceful IVD loading or axial rotation.
Tani sirasinda hastalarin ortalama BVF indeksleri 1.88 [cm.sup.2]/[m.sup.2], aortik anulus caplari 10.93 mm, BVF capinin aortik anuluse orani ise 0.75 bulundu (hastalara ait olcumler Tablo 1'de verilmistir).
Sag ventrikul sistolik fonksiyon gostergelerinden olan trikuspit anulus duzey sapmasi (TAPSE), apikal dort bosluk goruntude sag ventrikul lateral trikuspit anulus ile ultrason fan orijini arasindaki trasede diyastol sonu ve sistol sonu cizgiler arasindaki fark (ms) alinarak yapildi (7).
Asendan aort capi ortalama 5.2[+ or -]0.4 cm, anulus capi ise ortalama 4.1[+ or -]0.7 cm olarak hesaplandi.
Aort kapak anulus capanin belirlenmesi; girisimden bir gun once tekrarlanan ekokardiyografik olcumle beraber, aort koku anjiyografisinden elde edilen olcumlerin her ikisi de dikkate alinarak gerceklestirildi.
Oblik aorto-tomi ile natif kapak rezeke edildi, kalsifikasyonlar temizlenerek, anulus mumkun oldugunca hareketli hale getirildi.
Diyastolik disfonksiyon tanisina pratik bir yaklasim olarak, Amerikan Ekokardiyografi Cemiyeti oncelikle doku Doppler goruntuleme (TDI) ile mitral anulus erken diyastolik velositelerine (E') bakilmasini onermektedir (6).