Changes

===Dorsal cricoarytenoid muscle===

===Dorsal cricoarytenoid muscle===

*Innervated by the caudal laryngeal nerve a branch of the vagus nerve ([[Cranial Nerves - Anatomy & Physiology|CN X]])

The dorsal cricoarytenoid muscle is innervated by the '''caudal laryngeal nerve''', a branch of the vagus nerve ([[Cranial Nerves - Anatomy & Physiology|CN X]]). It runs from the dorsal surface of the '''cricoid cartilage''' to the '''arytenoid cartilage'''. It abducts the vocal process and therefore the vocal fold to widen the glottis.

*Dorsal surface of cricoid cartilage to arytenoid cartilage

*Abducts vocal process and therefore vocal fold

*Widens glottis

===Lateral cricoarytenoid muscle===

===Lateral cricoarytenoid muscle===