Question 897
{"accessible":false,"alternatives":[{"id":4512,"text":"middle scalene muscle attaches to the first rib between the groove for the subclavian artery and the transverse tubercle"},{"id":4513,"text":"the first rib forms the lateral border of the superior thoracic aperture"},{"id":4514,"text":"brachial plexus travels over the first rib, posterior to the anterior scalene muscle"},{"id":4515,"text":"the first rib features a single articular facet for the costovertebral joint"},{"id":4516,"text":"scalene tubercle serves as a point of attachment for the middle scalene muscle"}],"archived":false,"correctAlternativeId":4516,"explanation":"\u003cp\u003eThe \u003ca title=\"First rib\" class=\"internal\" href=\"/articles/first-rib\"\u003efirst rib\u003c/a\u003e is \u003ca title=\"Atypical ribs\" class=\"internal\" href=\"/articles/atypical-ribs\"\u003eatypical\u003c/a\u003e in the sense that it is very short and thick, and features a single articular facet on its head for the costovertebral joint. It is an important anatomical landmark\u0026nbsp;as it forms the lateral border of the \u003ca title=\"Superior thoracic aperture\" class=\"internal\" href=\"/articles/superior-thoracic-aperture\"\u003esuperior thoracic aperture\u003c/a\u003e and has a number of major structures that pass over it.\u003c/p\u003e\u003cp\u003eIts markings from anterior to posterior include:\u003c/p\u003e\u003cul\u003e\n\u003cli\u003egroove for the \u003ca title=\"Subclavian vein\" class=\"internal\" href=\"/articles/subclavian-vein\"\u003esubclavian vein\u003c/a\u003e\n\u003c/li\u003e\n\u003cli\u003escalene tubercle, serving as attachment for the \u003ca title=\"Anterior scalene muscle\" class=\"internal\" href=\"/articles/scalenus-anterior-muscle-1\"\u003eanterior scalene muscle\u003c/a\u003e\u0026nbsp;(thus rendering the last option above \u003cstrong\u003eFALSE\u003c/strong\u003e)\u003c/li\u003e\n\u003cli\u003egroove for the \u003ca title=\"Subclavian artery\" class=\"internal\" href=\"/articles/subclavian-artery\"\u003esubclavian artery\u003c/a\u003e and the lowest \u003ca title=\"Brachial plexus\" class=\"internal\" href=\"/articles/brachial-plexus\"\u003ebrachial plexus\u003c/a\u003e trunk\u003c/li\u003e\n\u003cli\u003e\n\u003ca title=\"Middle scalene muscle\" class=\"internal\" href=\"/articles/scalenus-medius-muscle\"\u003emiddle\u0026nbsp;scalene muscle\u003c/a\u003e attachment\u003c/li\u003e\n\u003cli\u003etransverse tubercle, which\u0026nbsp;bears an articular facet for the transverse process of T1\u003c/li\u003e\n\u003c/ul\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e","id":897,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1342","nextQuestionPath":"/articles/brachial-plexus/questions/838","relatedArticles":[{"id":24579,"title":"Subclavian artery","link":"/articles/subclavian-artery?lang=us"},{"id":35014,"title":"Subclavian vein","link":"/articles/subclavian-vein?lang=us"},{"id":12652,"title":"Scalenus medius muscle","link":"/articles/scalenus-medius-muscle?lang=us"},{"id":27102,"title":"First rib","link":"/articles/first-rib?lang=us"},{"id":12651,"title":"Scalenus anterior muscle","link":"/articles/scalenus-anterior-muscle-1?lang=us"},{"id":27618,"title":"Superior thoracic aperture","link":"/articles/superior-thoracic-aperture?lang=us"}],"alsoUsedIn":[{"id":397,"kind":"Course","title":"Medical Imaging Anatomy Course - Melbourne - page 397","link":"https://radiopaedia.org/courses/medical-imaging-anatomy-course-melbourne-2020/pages/397"},{"id":397,"kind":"Course","title":"Medical Imaging Anatomy Course - Melbourne - page 397","link":"https://radiopaedia.org/courses/medical-imaging-anatomy-course-melbourne-2019/pages/397"},{"id":397,"kind":"Course","title":"Medical Imaging Anatomy Webinars - page 397","link":"https://radiopaedia.org/courses/medical-imaging-anatomy-webinar-2022/pages/397"},{"id":397,"kind":"Course","title":"Medical Imaging Anatomy Course - page 397","link":"https://radiopaedia.org/courses/medical-imaging-anatomy-course-online/pages/397"},{"id":397,"kind":"Course","title":"Medical Imaging Anatomy Webinar Series - page 397","link":"https://radiopaedia.org/courses/medical-imaging-anatomy-webinar-series/pages/397"}],"stem":"\u003cp\u003eWhich of the following is \u003cstrong\u003eFALSE\u0026nbsp;\u003c/strong\u003eregarding the first rib?\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/897"}],"attemptsPercentages":[{"alternativeId":"4512","percentage":22},{"alternativeId":"4515","percentage":16},{"alternativeId":"4516","percentage":40},{"alternativeId":"4513","percentage":7},{"alternativeId":"4514","percentage":14}],"promptToLogin":false,"questionManager":false,"articleId":"brachial-plexus"}