{"id":111,"date":"2010-06-09T09:05:42","date_gmt":"2010-06-09T08:05:42","guid":{"rendered":"https:\/\/cloverock.info\/mockosce23\/new\/the-cranial-nerves-cn-xi\/"},"modified":"2022-12-05T09:05:03","modified_gmt":"2022-12-05T09:05:03","slug":"the-cranial-nerves-cn-xi","status":"publish","type":"post","link":"https:\/\/www.qpercom.com\/sim\/index.php\/the-neurological-examination\/the-cranial-nerves\/the-cranial-nerves-cn-xi\/","title":{"rendered":"The cranial nerves &#8211; CN XI"},"content":{"rendered":"<p>The CN XI only contains motor fibres and innervates the sternocleidomastoid muscle and the trapezius muscle.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/116864301?dnt=1&amp;app_id=122963\" width=\"640\" height=\"480\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<h2>Procedure<\/h2>\n<p><strong>Sternocleidomastoid muscle<\/strong><\/p>\n<ul>\n<li>Stand behind the patient and hold your right hand against the patient\u2019s lower right jaw [Figure&nbsp;32].<\/li>\n<li>Ask the patient to push your hand away.<\/li>\n<li>In this way assess the strength of the left sternocleidomastoid muscle.<\/li>\n<li>Subsequently examine the strength of the right sternocleidomastoid muscle.<\/li>\n<\/ul>\n<p><span class=\"jce_caption\" style=\"display: inline-block;\"><img loading=\"lazy\" decoding=\"async\" class=\" size-full wp-image-109\" src=\"https:\/\/cloverock.info\/mockosce23\/new\/wp-content\/uploads\/2010\/06\/NeuroExam_n-fig-32.jpg\" alt=\"\" width=\"400\" height=\"294\" srcset=\"https:\/\/www.qpercom.com\/sim\/wp-content\/uploads\/2010\/06\/NeuroExam_n-fig-32.jpg 400w, https:\/\/www.qpercom.com\/sim\/wp-content\/uploads\/2010\/06\/NeuroExam_n-fig-32-300x221.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><span style=\"width: 400px; display: block;\">Figure 32<\/span><\/span><\/p>\n<p><strong>Trapezius muscle<\/strong><\/p>\n<ul>\n<li>Have the patient lift their shoulders [Figure 33].<\/li>\n<li>Place your hands on the patient\u2019s shoulders and try to push them down.<\/li>\n<li>Grade the strength of the trapezius muscle and the sternocleidomastoid muscle.&nbsp;<\/li>\n<li>Compare left and right.<\/li>\n<\/ul>\n<p><span class=\"jce_caption\" style=\"display: inline-block;\"><img loading=\"lazy\" decoding=\"async\" class=\" size-full wp-image-110\" src=\"https:\/\/cloverock.info\/mockosce23\/new\/wp-content\/uploads\/2010\/06\/NeuroExam_n-fig-33.jpg\" alt=\"\" width=\"400\" height=\"294\" srcset=\"https:\/\/www.qpercom.com\/sim\/wp-content\/uploads\/2010\/06\/NeuroExam_n-fig-33.jpg 400w, https:\/\/www.qpercom.com\/sim\/wp-content\/uploads\/2010\/06\/NeuroExam_n-fig-33-300x221.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><span style=\"width: 400px; display: block;\">Figure 33<\/span><\/span><\/p>\n<h3>Interpretation<\/h3>\n<p>Since the CN IX, CN X and CN XI all exit the skull through the jugular foramen, any pathology near this foramen (carcinoma, meningitis) often causes loss of function in all three nerves.<\/p>\n<p><span class=\"jce_caption\" style=\"display: inline-block;\">&nbsp;<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The CN XI only contains motor fibres and innervates the sternocleidomastoid muscle and the trapezius muscle. Procedure Sternocleidomastoid muscle Stand behind the patient and hold your right hand against the patient\u2019s lower right jaw [Figure&nbsp;32]. Ask the patient to push your hand away. In this way assess the strength of the left sternocleidomastoid muscle. Subsequently [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[105],"tags":[106,113],"class_list":["post-111","post","type-post","status-publish","format-standard","hentry","category-the-cranial-nerves","tag-cranial-nerves","tag-the-neurological-examination"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The cranial nerves - CN XI - Qpercom | Skills in Medicine<\/title>\n<meta name=\"description\" content=\"Online Mock OSCEs with examiners, patient actors, instant results and personalised feedback. 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