REFERAT HEMOROID.ppt

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  Pembimbing :dr. Wicaksono Probowoso, Sp.BDisusun Oleh :Thariq Ahmad H2A014046 FAKULTAS KEDOKTERANUNIVERSITAS MUHAMMADIYAH SEMARANGRSU PKU MUHAMMADIYAH DELANGGU KLATEN   Canalis analis   bagian akhir dari usus besar  panjang 4 cm dari rektum s/d orifisium anal  ½ bagian keatas:epitel skuamos  ½ bagian kebawah:epitel kolumner  Canalis analis   dan kulit luar sekitarnyabanyak persarafan sensoris somatik  →  pekarsg.Nyeri  Rectum punya persarafan autonom  →  tidakpeka rsg.nyeri   Batas atas  canalis analis   (garis anorektum), garismukokutan dan linea dentata → terdapat jalurmorgagni (kripte anus) & muara klj.anus  Lekukan antar sfingter dpt diraba (canalis analis)saat colok dubur → batas sfingter interna &eksterna (garis Hilton).   VASKULARISASI ARTERI   A.hemoroidalis superior: lanjutana.mesenterika inferior  → terbagi cabangkanan-kiri   A.hemoroidalis medial  → cabang anteriora.iliaca interna   A.hemoroidalis infer  → cabang a.pudendainterna  Perdarahan pleksus hemoroidalis  → darahsegar merah.
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