{"id":3897,"date":"2026-02-26T16:53:59","date_gmt":"2026-02-26T13:53:59","guid":{"rendered":"https:\/\/wiki.voka.io\/glossary\/colo-do-utero\/"},"modified":"2026-04-01T18:38:21","modified_gmt":"2026-04-01T15:38:21","slug":"colo-do-utero","status":"publish","type":"glossary_item","link":"https:\/\/wiki.voka.io\/pt\/glossary\/colo-do-utero\/","title":{"rendered":"Colo do \u00fatero"},"content":{"rendered":"\n

Colo do \u00fatero (lat. cervix uteri<\/em>) \u00e9 o segmento inferior fibroso-muscular do \u00fatero em forma cil\u00edndrica ou c\u00f4nica, que se projeta no l\u00famen vaginal e o conecta \u00e0 cavidade uterina por meio de um canal cervical estreito.<\/p>\n\n

Etiologia e fisiopatologia<\/strong><\/h2>\n\n

O colo do \u00fatero funciona como uma v\u00e1lvula biol\u00f3gica complexa e uma barreira imunol\u00f3gica. O muco do canal cervical cont\u00e9m lisozima, lactoferrina e IgA secretor, protegendo a cavidade uterina est\u00e9ril de infec\u00e7\u00f5es ascendentes. Histologicamente, o colo possui duas zonas:<\/p>\n\n

    \n
  1. Exoc\u00e9rvix (parte vaginal):<\/strong> Coberto por um epit\u00e9lio escamoso estratificado n\u00e3o queratinizado, rico em glicog\u00eanio.<\/li>\n\n\n\n
  2. Endoc\u00e9rvix (canal):<\/strong> Revestido por epit\u00e9lio colunar simples produtor de muco. A jun\u00e7\u00e3o dos epit\u00e9lios (zona de transforma\u00e7\u00e3o<\/strong>) \u00e9 uma \u00e1rea de alta atividade mit\u00f3tica e local de persist\u00eancia do papilomav\u00edrus humano (HPV), onde a displasia e o c\u00e2ncer cervical s\u00e3o iniciados.<\/li>\n<\/ol>\n\n

    Import\u00e2ncia cl\u00ednica<\/strong><\/h2>\n\n

    A inflama\u00e7\u00e3o do colo do \u00fatero (cervicite<\/strong>) \u00e9 uma patologia extremamente comum. A anatomia do epit\u00e9lio determina o tropismo das infec\u00e7\u00f5es: gonococos e clam\u00eddia afetam o epit\u00e9lio colunar do canal, enquanto os herpes-v\u00edrus e trichomonas atacam o epit\u00e9lio escamoso do exoc\u00e9rvix. Durante o parto, o colo do \u00fatero passa por uma remodela\u00e7\u00e3o estrutural (dilata\u00e7\u00e3o e apagamento at\u00e9 10 cm), permitindo a passagem do feto. A insufici\u00eancia istmicocervical (fraqueza do aparato de fechamento) \u00e9 a principal causa de abortos espont\u00e2neos tardios.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Colo do \u00fatero (lat. cervix uteri<\/em>) \u00e9 o segmento inferior fibroso-muscular do \u00fatero em forma cil\u00edndrica ou c\u00f4nica, que se projeta no l\u00famen vaginal e o conecta \u00e0 cavidade uterina por meio de um canal cervical estreito.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-3897","glossary_item","type-glossary_item","status-publish","hentry"],"acf":[],"yoast_head":"\nColo do \u00fatero: defini\u00e7\u00e3o m\u00e9dica e vis\u00e3o geral | Voka Wiki<\/title>\n<meta name=\"description\" content=\"Colo do \u00fatero (lat. cervix uteri) \u00e9 o segmento inferior fibroso-muscular do \u00fatero em forma cil\u00edndrica ou c\u00f4nica, que se projeta no l\u00famen vaginal e o conecta \u00e0 cavidade uterina por meio de um canal cervical estreito.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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