{"id":32691,"date":"2026-09-14T18:56:00","date_gmt":"2026-09-14T22:56:00","guid":{"rendered":"https:\/\/www.rigicon.com\/?post_type=glossary-term&p=32691"},"modified":"2026-09-15T06:16:00","modified_gmt":"2026-09-15T10:16:00","slug":"miccao","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/miccao\/","title":{"rendered":"Mic\u00e7\u00e3o"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[144],"glossary-product":[],"class_list":["post-32691","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-urology"],"acf":{"gt-definition":"<p>A mic\u00e7\u00e3o, tamb\u00e9m conhecida como ato de urinar, \u00e9 o processo fisiol\u00f3gico de esvaziamento da urina da bexiga urin\u00e1ria atrav\u00e9s da uretra para o exterior do corpo.<sup>1<\/sup> Essa fun\u00e7\u00e3o corporal humana vital envolve uma rede complexa de sinais neurais entre o sistema nervoso e o trato urin\u00e1rio.<sup>2<\/sup> O reflexo de mic\u00e7\u00e3o requer atividade coordenada entre o c\u00e9rebro, a medula espinhal e os g\u00e2nglios perif\u00e9ricos, que regulam tanto a fase de armazenamento quanto a de esvaziamento da fun\u00e7\u00e3o vesical.<sup>3<\/sup> Durante o armazenamento, o m\u00fasculo detrusor relaxa enquanto o esf\u00edncter uretral se contrai; durante o esvaziamento, esse padr\u00e3o se inverte com a contra\u00e7\u00e3o do detrusor e o relaxamento do esf\u00edncter, permitindo o fluxo da urina.<sup>4<\/sup> O processo transita de involunt\u00e1rio em lactentes para o controle volunt\u00e1rio em adultos, tipicamente entre os 3 e 5 anos de idade, por meio do desenvolvimento e matura\u00e7\u00e3o neural.<sup>5<\/sup><\/p>\n","gt-synonyms":"Ato de urinar, esvaziamento vesical, urese, emituri\u00e7\u00e3o, urina\u00e7\u00e3o, fazer xixi, urinar, verter \u00e1gua","gt-citation":"[1] Fowler CJ, Griffiths D, de Groat WC. The neural control of micturition. Nat Rev Neurosci. 2008 Jun;9(6):453-66. DOI: 10.1038\/nrn2401\n\n[2] Flores JL, Cortes GA, Leslie SW. Physiology, Urination. StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Sep 13.\n\n[3] de Groat WC, Griffiths D, Yoshimura N. Neural control of the lower urinary tract. Compr Physiol. 2015 Jan;5(1):327-96. DOI: 10.1002\/cphy.c130056\n\n[4] Yoshimura N, Miyazato M. Neurophysiology and therapeutic receptor targets for stress urinary incontinence. Int J Urol. 2012 Jun;19(6):524-37. DOI: 10.1111\/j.1442-2042.2012.02976.x\n\n[5] Yoshimura N, Kaiho Y, Miyazato M, et al. Therapeutic receptor targets for lower urinary tract dysfunction. Naunyn Schmiedebergs Arch Pharmacol. 2008 Jun;377(4-6):437-48. DOI: 10.1007\/s00210-007-0209-z","gt-clinical-context":"<p>A mic\u00e7\u00e3o tem relev\u00e2ncia cl\u00ednica no diagn\u00f3stico e manejo de diversas condi\u00e7\u00f5es urol\u00f3gicas e neurol\u00f3gicas.<sup>1<\/sup> A mic\u00e7\u00e3o normal requer vias neurais intactas entre o c\u00e9rebro, a medula espinhal e a bexiga, sendo que interrup\u00e7\u00f5es podem levar a dist\u00farbios como incontin\u00eancia urin\u00e1ria, reten\u00e7\u00e3o urin\u00e1ria ou dissinergia detrusor-esfincteriana.<sup>2<\/sup><\/p>\n<p>Os m\u00e9dicos avaliam a mic\u00e7\u00e3o por meio de estudos urodin\u00e2micos, que avaliam a fun\u00e7\u00e3o, capacidade e press\u00e3o da bexiga durante as fases de enchimento e esvaziamento.<sup>3<\/sup> Condi\u00e7\u00f5es que afetam a mic\u00e7\u00e3o incluem infec\u00e7\u00f5es do trato urin\u00e1rio, cistite intersticial, hiperplasia prost\u00e1tica benigna, bexiga neurog\u00eanica, les\u00f5es medulares, esclerose m\u00faltipla, doen\u00e7a de Parkinson e acidente vascular cerebral.<sup>4<\/sup><\/p>\n<p>As abordagens de tratamento variam com base na causa subjacente e podem incluir modifica\u00e7\u00f5es comportamentais, exerc\u00edcios para o assoalho p\u00e9lvico, farmacoterapia direcionada a receptores de neurotransmissores espec\u00edficos (particularmente muscar\u00ednicos e adren\u00e9rgicos), neuromodula\u00e7\u00e3o ou interven\u00e7\u00f5es cir\u00fargicas.<sup>5<\/sup> A compreens\u00e3o do complexo controle neural da mic\u00e7\u00e3o \u00e9 essencial para o desenvolvimento de tratamentos eficazes para a disfun\u00e7\u00e3o do trato urin\u00e1rio inferior.<\/p>\n","gt-related-evidence":null,"gt-featured":false,"gt-ai-referenced":true,"gt-view-count":0},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mic\u00e7\u00e3o: Fisiologia, Controle Neural e Cuidados Cl\u00ednicos<\/title>\n<meta name=\"description\" content=\"A mic\u00e7\u00e3o envolve vias neurais que controlam o esvaziamento vesical. 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