circulus


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circulus

[′sər·kyə·ləs]
(biology)
Any of various ringlike structures, such as the vascular circle of Willis or the concentric ridges on fish scales.
References in periodicals archive ?
The most detailed description of circulus arteriosus cerebri was published by Kanan, but this work don't showed photographs and topography by sections of these vessels in relation to the different parts of the head and encephalon.
This is why a more precise expression in this context would indeed be an antivicious circle: a non-cycle of existence, i.e., a circulus antivitiosus.
The previously mentioned interaction has the potential for positive feedback and circulus vitiosus creation.
Announcement of a contract awarded: Designation transport and processing of packaging glass for twente milieu nv, Circulus berkel bv and rova regie bv
O circulo nao e um cerco, nao e movido aleatoriamente e nem num mesmo e unico sentido de maneira reiteradamente repetida, o que o tomaria um "circulo vicioso" (circulus vitiosus).
This musculoskeletal situation has an essential importance as it also contributes to the further reduction of physical activity and participation in exercise, resulting in kinesiophobia which contributes to "circulus vitiosus" of reduced energy output and increased adiposity [41].
Pronto se descubrio que casi todos los obispos o los otros participantes del circulus minor enfrentaban en sus familias los temas, las preocupaciones y las "irregularidades" de las cuales nosotros en el Sinodo habiamos hablado de forma algo abstracta.
Each scale was measured along a reference line drawn along the longest axis of the posterior portion of the scale from the center of the focus to the leading edge of the 9th circulus (Sa), 21st circulus (Sb), 1st annulus (Sc), 2nd annulus (S2), 3rd annulus (S3), and to the edge of the scale (S4).
Marcial, por ejemplo, compara con circulatores a sus enemigos, denotando la baja sofisticacion de sus gustos (64) o Encolpio, en el Satiricon, compara la cena de Trimalcion con los espectaculos propios de un circulus (65).
Circulus present between abdominal segments III and IV, with an intersegmental crease.