Question 826
{"accessible":false,"alternatives":[{"id":4179,"text":"axillary nerve"},{"id":4180,"text":"median nerve"},{"id":4181,"text":"musculocutaneous nerve"},{"id":4182,"text":"radial nerve"},{"id":4183,"text":"ulnar nerve"}],"archived":false,"correctAlternativeId":4182,"explanation":"\u003cp\u003eThe radial nerve is the major branch of the posterior cord (C5-T1). \u0026nbsp;It lies behind the axillary artery and then passes posteriorly between the long and medial heads of the triceps to lie in the spiral groove on the back of the humerus between the medial and lateral heads of triceps. The profunda branch of the brachial artery and its venae comitantes accompany it along this course.\u003c/p\u003e\u003cp\u003e\u003c/p\u003e","id":826,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1342","nextQuestionPath":"/articles/brachial-plexus/questions/825","relatedArticles":[{"id":24692,"title":"Axillary nerve","link":"/articles/axillary-nerve?lang=us"},{"id":21858,"title":"Median nerve","link":"/articles/median-nerve-2?lang=us"},{"id":24690,"title":"Ulnar nerve","link":"/articles/ulnar-nerve?lang=us"},{"id":24691,"title":"Radial nerve","link":"/articles/radial-nerve-2?lang=us"},{"id":24693,"title":"Musculocutaneous nerve","link":"/articles/musculocutaneous-nerve?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 nerve of the arm lies in the spiral groove of the humerus?\u003c/p\u003e\u003cp\u003e\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/826"}],"attemptsPercentages":[{"alternativeId":"4182","percentage":66},{"alternativeId":"4181","percentage":6},{"alternativeId":"4179","percentage":18},{"alternativeId":"4180","percentage":7},{"alternativeId":"4183","percentage":3}],"promptToLogin":false,"questionManager":false,"articleId":"brachial-plexus"}