{"id":12589,"date":"2025-06-23T07:38:07","date_gmt":"2025-06-23T11:38:07","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/bulbospongiosus-muscle\/"},"modified":"2025-06-23T07:38:07","modified_gmt":"2025-06-23T11:38:07","slug":"musculo-bulboesponjoso-pt-br","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/musculo-bulboesponjoso-pt-br\/","title":{"rendered":"M\u00fasculo Bulboesponjoso"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[143],"glossary-product":[104,105],"class_list":["post-12589","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-anatomical-structures","glossary-product-infla10-pulse-ipp-series","glossary-product-rigi10-malleable-penile-prosthesis"],"acf":{"gt-definition":"<p>O m\u00fasculo bulboesponjoso \u00e9 um m\u00fasculo superficial pareado do assoalho p\u00e9lvico, localizado no espa\u00e7o perineal superficial.\u00b9 Apresenta dimorfismo sexual, ou seja, sua estrutura e inser\u00e7\u00f5es espec\u00edficas diferem entre homens e mulheres. Nos homens, as fibras musculares s\u00e3o fundidas em uma rafe mediana e circundam o bulbo do p\u00eanis e o corpo esponjoso.\u00b9 Nas mulheres, as duas partes do m\u00fasculo s\u00e3o separadas e flanqueiam o orif\u00edcio vaginal, cobrindo os bulbos do vest\u00edbulo.\u00b9<\/p>\n<p>A fun\u00e7\u00e3o prim\u00e1ria do m\u00fasculo bulboesponjoso envolve a compress\u00e3o dos tecidos er\u00e9teis que ele envolve e das estruturas do trato urogenital. Nos homens, desempenha um papel crucial em v\u00e1rios processos fisiol\u00f3gicos: auxilia na expuls\u00e3o da urina residual da uretra ap\u00f3s a mic\u00e7\u00e3o,\u00b2 contribui para a ejacula\u00e7\u00e3o ao impulsionar o s\u00eamen atrav\u00e9s da uretra,\u00b9 e auxilia na obten\u00e7\u00e3o e manuten\u00e7\u00e3o da ere\u00e7\u00e3o peniana, comprimindo o bulbo do p\u00eanis e a veia dorsal profunda do p\u00eanis, impedindo assim a passagem venosa sa\u00edda.\u00b9\u00b3 Nas mulheres, o m\u00fasculo bulboesponjoso contribui para a ere\u00e7\u00e3o do clit\u00f3ris, comprimindo sua veia dorsal profunda, contraindo o orif\u00edcio vaginal e auxiliando no esvaziamento das gl\u00e2ndulas vestibulares maiores (de Bartholin).\u00b9\u00b2 Em ambos os sexos, tamb\u00e9m fornece suporte ao corpo perineal.\u00b9<\/p>\n<p>O m\u00fasculo bulboesponjoso \u00e9 um m\u00fasculo estriado do per\u00edneo masculino que envolve o bulbo do p\u00eanis e a por\u00e7\u00e3o proximal do corpo esponjoso. Origina-se do corpo perineal e da rafe perineal mediana, inserindo-se na superf\u00edcie ventral do corpo esponjoso e na f\u00e1scia de Buck. Sua contra\u00e7\u00e3o contribui para a expuls\u00e3o do s\u00eamen durante a ejacula\u00e7\u00e3o, o esvaziamento da uretra ap\u00f3s a mic\u00e7\u00e3o e o aux\u00edlio \u00e0 rigidez er\u00e9til.<\/p>","gt-synonyms":"M\u00fasculo bulbocavernoso, Musculus bulbospongiosus, m\u00fasculo BS","gt-citation":"[1] Vaskovi\u0107, J., & Gruji\u010di\u0107, R. (2023). Bulbospongiosus muscle. Kenhub. Retrieved May 15, 2025, from https:\/\/www.kenhub.com\/en\/library\/anatomy\/bulbospongiosus-muscle\n\n[2] Hacking, C. (2021). Bulbospongiosus muscle. Radiopaedia.org. DOI: 10.53347\/rID-34789 (Verified at https:\/\/doi.org\/10.53347\/rID-34789)\n\n[3] Sam, P., & LaGrange, C. A. (2023). Anatomy, Abdomen and Pelvis, Penis. In StatPearls. StatPearls Publishing. PMID: 29489230. Retrieved from https:\/\/www.ncbi.nlm.nih.gov\/books\/NBK482236\/","gt-clinical-context":"<p>O m\u00fasculo bulboesponjoso \u00e9 clinicamente relevante em diversos contextos relacionados \u00e0 fun\u00e7\u00e3o e disfun\u00e7\u00e3o urogenital. Seu papel na contin\u00eancia urin\u00e1ria \u00e9 significativo, pois ajuda a expelir as \u00faltimas gotas de urina da uretra, evitando o gotejamento p\u00f3s-miccional.\u00b9 A disfun\u00e7\u00e3o desse m\u00fasculo pode contribuir para os sintomas urin\u00e1rios. Nos homens, o m\u00fasculo bulboesponjoso \u00e9 parte integrante da fun\u00e7\u00e3o sexual, incluindo ere\u00e7\u00e3o e ejacula\u00e7\u00e3o.\u00b9\u00b3 Sua fun\u00e7\u00e3o adequada \u00e9 necess\u00e1ria para comprimir o bulbo peniano e a crura, o que auxilia na obten\u00e7\u00e3o e manuten\u00e7\u00e3o da rigidez e na expuls\u00e3o for\u00e7ada do s\u00eamen. Portanto, danos a este m\u00fasculo ou \u00e0 sua inerva\u00e7\u00e3o (por exemplo, devido a trauma, cirurgia ou condi\u00e7\u00f5es neurol\u00f3gicas) podem levar \u00e0 disfun\u00e7\u00e3o er\u00e9til ou dist\u00farbios ejaculat\u00f3rios. Por exemplo, durante cirurgias perineais, como prostatectomia radical ou uretroplastia, deve-se tomar cuidado para preservar a integridade do m\u00fasculo bulboesponjoso e seu suprimento nervoso (ramos do nervo pudendo) para minimizar o risco de disfun\u00e7\u00e3o sexual ou urin\u00e1ria p\u00f3s-operat\u00f3ria.\u00b9<\/p>\n<p>Nas mulheres, o m\u00fasculo bulboesponjoso contribui para a excita\u00e7\u00e3o sexual, auxiliando na ere\u00e7\u00e3o do clit\u00f3ris e comprimindo a abertura vaginal.\u00b9 Seu envolvimento na fun\u00e7\u00e3o das gl\u00e2ndulas vestibulares maiores tamb\u00e9m significa que problemas com esse m\u00fasculo podem potencialmente afetar as secre\u00e7\u00f5es glandulares. Durante o parto, a musculatura perineal, incluindo o bulbo esponjoso, pode estar sujeita a estiramento ou ruptura, o que pode exigir reparo e ter implica\u00e7\u00f5es na recupera\u00e7\u00e3o p\u00f3s-parto e na fun\u00e7\u00e3o do assoalho p\u00e9lvico.\u00b9<\/p>\n<p>A avalia\u00e7\u00e3o da fun\u00e7\u00e3o do m\u00fasculo bulboesponjoso pode fazer parte de um exame abrangente do assoalho p\u00e9lvico, principalmente ao investigar causas de disfun\u00e7\u00e3o sexual, incontin\u00eancia urin\u00e1ria ou dor p\u00e9lvica. A eletromiografia (EMG) pode ser usada para avaliar a atividade el\u00e9trica do m\u00fasculo, e t\u00e9cnicas de imagem como a resson\u00e2ncia magn\u00e9tica podem visualizar sua estrutura. Os resultados esperados ap\u00f3s interven\u00e7\u00f5es que afetam este m\u00fasculo (por exemplo, reabilita\u00e7\u00e3o do pavimento p\u00e9lvico, repara\u00e7\u00e3o cir\u00fargica) visam restaurar ou melhorar a sua contribui\u00e7\u00e3o para a fun\u00e7\u00e3o urin\u00e1ria e sexual normal.<\/p>\n<p>Na pr\u00e1tica urol\u00f3gica, o m\u00fasculo bulboesponjoso \u00e9 relevante durante a dissec\u00e7\u00e3o para implanta\u00e7\u00e3o de esf\u00edncter urin\u00e1rio artificial (o cuff \u00e9 posicionado ao redor da uretra bulbar coberta por este m\u00fasculo) e na uretroplastia. A avalia\u00e7\u00e3o do reflexo bulbocavernoso (contra\u00e7\u00e3o do m\u00fasculo ao comprimir a glande) \u00e9 utilizada no exame neurol\u00f3gico para avaliar a integridade do arco reflexo sacral (S2-S4).<\/p>","gt-related-evidence":null,"gt-featured":false,"gt-ai-referenced":false,"gt-view-count":316},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>M\u00fasculo Bulboesponjoso: Anatomia Perineal | Rigicon<\/title>\n<meta name=\"description\" content=\"Conhe\u00e7a o m\u00fasculo bulboesponjoso, estrutura perineal importante na ejacula\u00e7\u00e3o, mic\u00e7\u00e3o e fun\u00e7\u00e3o er\u00e9til. 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