gornja i donja šuplja vena
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Gornja I donja šuplja venaLimfni sistem
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• Sve vene čoveka se ulivaju u desnu pretkomoru, izuzev plućnih vena ( vv. pulmonales )
• Sve vene čoveka su podeljene na dva velika sistema :Sistem gornje šuplje veneSistem donje šuplje vene
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Sistem gornje šuplje vene• Gornja šuplja vena ( v. cava superior ) nastaje spajanjem
desne I leve brahiocefalične vene ( v. brachiocephalica dextra et sinistra ) iza hrskavice I desnog rebra
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Sistem gornje šuplje vene
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Sistem gornje šuplje vene• Jedina bočna pritoka gornje šuplje vene je vena azigos ( v.
azigos ), krvni sud koji povezuje sistem gornje I donje šuplje vene
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Desna I leva brahiocefalična vena• Desna I leva brahiocefalična vena nastaju spajanjem
unutrašnje jugularne vene ( v. jugularis interna ) I potključne vene ( v. subclavia )
• Spoj ove dve vene se naziva venski ugao ( angulus venosus )
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Unutrašnja jugularna vena • Unutrašnja jugularna vena ( v.jugularis interna ) predstavlja
krvni sud koji odvodi krv iz mozga, glave I vrata.• Ovaj krvni sud se nastavlja na tzv. sigmoidni sinus ( sinus
sygmoideus )• Sigmoidni sinus predstavlja skup krvnih sudova tvrde
moždanice ( dura mater ) koji odvode vensku krv iz mozga
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Potključna vena • Potključna vena ( v. subclavia ) predstavlja krvni sud koji se
nastavlja na pazušnu venu ( v. axillaris ) u nivou I rebra.• Pazušna vena ( v. axillaris ) sakuplja vensku krv iz gornjeg
ekstremiteta.• Vene gornjeg ekstremitita mogu biti površinske I duboke
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Sistem donje šuplje vene• Donja šuplja vena ( v. cava inferior ) nastaje spajanjem u
nivou petog slabiskog pršljena , desne I leve zaledničke bedrene vene ( v. iliaca communis dextra et sinistra )
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Sistem donje šuplje vene• Najvažnije bočne pritoke donje šuplje vene su bubrežne vene (
v. renales ) I vene jetre ( v. hepaticae ) kojima se odvodi venska krv iz jetre
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Sistem portne vene• Portna vena ( v. porta )predstavlja funkcionalni krvni sud
jerte koji odvodi vensku krv iz organa za varenje• Portne vena se saastoji iz:
Gornje crevne vene ( v. mesenterica superior )Donje crevne vene ( v. mesenterica inferior )Slezinske vene ( v. lienalis )
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Zajednička bedrena vena • Zajednička bedrena vena ( a. iliaca communis dextra et
sinistra ) je paran venski krvni sud koji nastaje spajanjem unutrašnje I spoljašnje bedrene vene ( v iliaca interna et externa )
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Unutrašnja bedrena vena • Unutrašnja bedrena vena ( v. iliaca interna ) je paran krvni sud
koji odvodi vensku krv iz zidova I organa karlice • Spoljašnja bedrena vena ( v. iliaca externa ) predstavlja paran
krvni sud koji se nastavlja na butnu venu ( v. femoralis )• Vene donjeg ekstremiteta se dele na površne I duboke
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Limfni sistem• Limfni sistem služi za odvođenje međućelijske tečnosti iz tkiva• Limfni sistem čine limfne žlezde ( nodi lymphatici ) I limfni
sudovi• Limfni sudovi mogu biti površinski I duboki
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Slezina ( lien )• Slezina je neparan organ limfnog sistema koji se nalazi u
trbušnoj duplji, ispod levog rebarnog luka.• Ima 2 strane : spoljašnju ( facies diaphragmatica ) I unutrašnju
( facies visceralis ) koja naleže na želudac I levi bubreg• Tkivo slezine čine limfni čvorovi I limfni kapilari koji čine tzv.
Sinus slezine ( sinus lienalis )
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