Changes

===Thyroarytenoid muscle===

===Thyroarytenoid muscle===

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

The thyroarytenoid muscle is innervated by the '''caudal laryngeal nerve''', a branch of the vagus nerve ([[Cranial Nerves - Anatomy & Physiology|CN X]]). It runs from the laryngeal floor to the '''thyroid cartilage''' and '''arytenoid cartilage''' and alters the tension of the vocal and vestibular folds. It forms part of the '''sphincter muscular arrangement'''.

*Laryngeal floor to the thyroid cartilage and arytenoid cartilage

*Alters the tension of the vocal and vestibular folds

*Forms part of the sphincter muscular arrangement

===Transverse arytenoid muscle===

===Transverse arytenoid muscle===