office-2016-key  | office-2016-keys  | office-2016-product-key  | office-2016-product-keys  | office-2016-activation-key  | windows-7-product-key  | windows-7-key  | windows-7-key  | windows-7-keys  | windows-7-product-key  | windows-7-ultimate  | windows-7-ultimate-sp1  | windows-7-professional  | windows-7-home-premium  | cheap-windows-7-keys  | windows-7-key-sale  | windows-7-iso  | windows-7-activation-key  | windows-7-download  | windows-7-os-download  | windows-7-key  | windows-7-keys  | windows-7-product-key  | windows-7-ultimate  | windows-7-ultimate-sp1  | windows-7-professional  | windows-7-home-premium  | cheap-windows-7-keys  | windows-7-key-sale  | windows-7-iso  | windows-7-activation-key  | windows-7-download  | windows-7-os-download  | office-2016-key  | office-2016-keys  | office-2016-product-key  | office-2016-product-keys  | office-2016-activation-key  | office-2013-key  | office-2013-keys  | office-2013-product-key  | office-2013-product-keys  | office-2013-activation-key  | office-2010-key  | office-2010-keys  | office-2010-product-key  | office-2010-product-keys  | office-2010-activation-key  | office-2007-key  | office-2007-keys  | office-2007-product-key  | office-2007-product-keys  | office-2007-activation-key  | windows-7-product-key  | windows-7-key  | windows-xp-key  | windows-xp-SP3  | Windows-XP-Home-Edition-SP3  | windows-7-ultimate  | windows-7-ultimate-sp1  | windows-7-professional  | windows-7-home-premium  | cheap-windows-7-keys  | windows-7-key-sale  | windows-7-iso  | windows-7-activation-key  | windows-7-download  | windows-7-os-download  | windows-xp-key  | windows-xp-SP3  | Windows-XP-Home-Edition-SP3  | windows-7-ultimate  | windows-7-ultimate-sp1  | windows-7-professional  | windows-7-home-premium  | cheap-windows-7-keys  | windows-7-key-sale  | windows-7-iso  | windows-7-activation-key  | windows-7-download  | windows-7-os-download  | office-2007-key  | office-2007-keys  | office-2007-product-key  | office-2007-product-keys  | office-2007-activation-key  | office-2007-key  | office-2007-keys  | office-2007-product-key  | office-2007-product-keys  | office-2007-activation-key  |

Afectiuni cardiovasculare

Afectiuni cardiovasculare

Scris de admin
09 Aug 2011 19:45

Inima,  pompa care asigura circulaţia sângelui in organism,  este un organ musculos,  gol pe dinăuntru,  alcătuit din patru cavităţi,  doua superioare (atrii) si doua inferioare (ventricule).  Fiecare atriu comunica cu ventriculul de aceeaşi parte printr-un orificiu prevăzut cu valvule ce au funcţia de supape; valvulele permit circulaţia sângelui in sens unic,  si anume dinspre atrii înspre ventricule.  Orificiul din partea dreapta are trei valvule iar cel din partea stânga numai doua.  Unele boli inflamatorii,  cel mai frecvent reumatismul,  se pot solda cu lezarea acestor valvule: strâmtorarea orificiului,  stenoza,  stânjenindu-se astfel scurgerea sângelui din atriu in ventricul sau împiedicarea etanşeităţii in momentul închiderii valvulelor,  insuficienta,  ceea ce are ca rezultat revenirea sângelui in sens invers,  din ventricul in atriu; uneori ambele tipuri de leziuni se pot asocia.