File:Anatomyductusarteriosus-es.png
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Anatomyductusarteriosus-es.png (500 × 600 pixels, file size: 174 KB, MIME type: image/png)
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DescriptionAnatomyductusarteriosus-es.png |
Español: Anatomía del CA y las arterias adyacentes. a) Un patente CA se encuentra en el feto antes de que comience la respiración. La sangre rica en oxígeno (en rojo) de la placenta pasa por la aorta. La sangre pobre en oxígeno del feto (en azul) pasa por la el CA entrando en la aorta descendente (en púrpura). b) Después del comienzo de la respiración, el CA regresa al ligamento arterioso. La circulación aórtica (en rojo) y pulmonar (en azul) se desconecta. c) En la coartación aórtica, una malformación cardíaca del lado izquierdo, el CA se mantiene abierto permitiendo que la sangre entre en la circulación sistémica. Las líneas discontinuas indican el plano de las secciones de tejido que se muestran en d-h. Secciones transversales del músculo CA (d;1 en c), la aorta elástica (e;2 en a), y el ligamento arterioso (f;3 en b). El engrosamiento íntimo en el CA está indicado en amarillo. Las zonas con CN se indican en blanco y las láminas elásticas onduladas en azul. Las células endoteliales (contornos rojos) se alinean en el interior de los vasos. Secciones longitudinales a través del CA (4 en a, proporcionando la Fig. 1g, y 5 en c proporcionando la Fig. 1h). g) El tejido del CA y el tejido de la aorta se fusionan y pueden distinguirse por separado por su histología característica. h) En la coartación, el medio interno y el engrosamiento íntimo del CA se extienden hacia la aorta, a veces casi rodeando el lumen del arco aórtico en ese lugar (como se muestra). El tejido aórtico siempre estará presente en el techo de la coartación.
English: Anatomy of DA and the adjacent arteries. (a) A patent DA is found in the fetus before respiration starts. Oxygen-rich blood (in red) from the placenta passes though the aorta. Oxygen-poor blood from the fetus (in blue) passes the DA entering the descending aorta (in purple). (b) After the start of respiration the DA regresses into a ligamentum arteriosum. Aortic (red) and pulmonary (blue) circulation are disconnected. (c) In aortic coarctation, a left sided heart malformation, the DA is kept open by administration of PGE allowing blood to enter the systemic circulation. Dashed lines indicate the plane of tissue sections shown in d–h. Transverse sections of the muscular DA (d;1 in c), the elastic aorta (e;2 in a), and the ligamentum arteriosum (f;3 in b). Intimal thickening in the DA is indicated in yellow. Areas with CN are indicated in white and the wavy elastic lamellae with blue. Endothelial cells (red outlines) line the inside of the vessels. Longitudinal sections through the DA (4 in a, providing Fig. 1g, and 5 in c providing Fig. 1h). (g) DA tissue and aorta tissue are merging and can be separately distinguished by their characteristic histology. (h) In coarctation, inner media and intimal thickening of the DA extend into the aorta sometimes almost encircling the lumen of the aortic arch at that site (as depicted). The aortic tissue will always be present in the roof of the coarctation. |
Date | |
Source | Commons File:Anatomyductusarteriosus.png |
Author |
Ivan Chang, Margit Heiske, Thierry Letellier, Douglas Wallace, Pierre Baldi
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