Question 919
{"accessible":false,"alternatives":[{"id":4621,"text":"flexion"},{"id":4622,"text":"extension"},{"id":4623,"text":"lateral flexion"},{"id":4624,"text":"rotation"},{"id":4625,"text":"nodding"}],"archived":false,"correctAlternativeId":4624,"explanation":"\u003cp\u003e\u003ca href=\"/articles/atlanto-occipital-articulation\"\u003eAtlanto-occipital joint\u003c/a\u003e is formed\u0026nbsp;by a pair of\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/condyloid-joint\"\u003econdyloid synovial joints\u003c/a\u003e\u0026nbsp;between the occipital\u0026nbsp;condyles\u0026nbsp;and the superior articular facets of the\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/atlas-c1\"\u003efirst cervical vertebra\u003c/a\u003e\u0026nbsp;(atlas/C1). It allows flexion and extension (a combination of which\u0026nbsp;results in \"nodding\"), as well as lateral flexion. Rotation of the skull is limited at this joint, but is possible at\u0026nbsp;the \u003ca href=\"/articles/atlanto-axial-articulation\"\u003eatlanto-axial articulation\u003c/a\u003e.\u003c/p\u003e","id":919,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1816","nextQuestionPath":null,"relatedArticles":[{"id":35478,"title":"Atlanto-occipital articulation","link":"/articles/atlanto-occipital-articulation?lang=us"},{"id":35480,"title":"Atlanto-axial articulation","link":"/articles/atlanto-axial-articulation?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 movements is minimally permitted at the atlanto-occipital joint?\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/919"}],"attemptsPercentages":[{"alternativeId":"4625","percentage":14},{"alternativeId":"4624","percentage":47},{"alternativeId":"4622","percentage":6},{"alternativeId":"4621","percentage":6},{"alternativeId":"4623","percentage":27}],"promptToLogin":false,"questionManager":false,"articleId":"cervical-spine"}