Evolutionary theory debunked

[RuudVanNistelrooy]

Another example Lents cites is the recurrent laryngeal nerve (p. 14) which he argues is much longer than required because, instead of travelling directly to the larynx, it loops around the aortic arch then travels back up to the larynx. The superior laryngeal nerve is not one nerve that has one function as implied by Lents and others, but has several functions. It divides into branches which control the internal laryngeal muscle, and innervate muscles responsible for pitch, controlling loudness, and vocal fatigue. The three main branches of the recurrent laryngeal nerve innervate several muscle bundles including the thyroarytenoid muscle, the posterior cricoarytenoid muscle and the lateral cricoarytenoid muscle. We know this because damage to the nerves that innervate these muscles affects articulation, causing speech to be ‘slurred’ or ‘garbled’. The existing recurrent laryngeal nerve system design serves to make fine adjustments to larynx control in order to improve speech quality.4