What Innervates the recurrent laryngeal nerve?

Both recurrent laryngeal nerves ascend cranially, ventral to the common carotid artery, to innervate all intrinsic muscles of the larynx except for the cricothyroid muscles, which are innervated by the ipsilateral external branch of the cranial laryngeal nerve.

What is Arteria Lusoria?

Arteria Lusoria or aberrant right subclavian artery (ARSA) is the most common congenital arch anomaly in which the right subclavian artery originates from the descending aorta, distal to the left subclavian at the ductus arteriosus [1.

What does the RLN supply?

The RLN supplies four intrinsic muscles of the larynx (Lateral cricoarytenoid, posterior cricorytenoid, transverse and oblique interarytenoid and thyroarytenoid) but not the cricothyroid muscle. The interarytenoid muscle, the only unpaired muscle of the larynx, receives innervation from both RLNs.

What does the recurrent laryngeal branch of the vagus nerve innervate?

The recurrent laryngeal nerve (RLN), also known as the inferior laryngeal nerve, is a branch of the vagus nerve (CN X) which has a characteristic loop around the right subclavian artery on the right and the aortic arch on the left before returning up to achieve the tracheoesophageal groove and then the larynx.

What nerves innervate laryngeal muscles?

The laryngeal muscles receive innervation from two nerves, the external branch of the superior laryngeal nerve and the recurrent laryngeal nerve.

What does the external laryngeal nerve innervate?

The external laryngeal nerve runs lateral to the larynx deep to the sternothyroid muscle and innervates the cricothyroid and superior pharyngeal muscles.

What does Retroesophageal mean?

Behind the esophagus
(rĕt″rō-ē-sŏf″ă-jē′ăl) [L. retro, behind, + Gr. oisophagos, gullet] Behind the esophagus.

Which laryngeal muscle is not supplied by the recurrent laryngeal nerve?

cricothyroid muscle
At this point, the RLN becomes the inferior laryngeal nerve. Inferior laryngeal branch of the recurrent laryngeal nerve: excluding the cricothyroid muscle [innervated by the superior laryngeal nerve], the inferior laryngeal branch of the recurrent laryngeal nerve innervates all intrinsic muscles of the larynx.

What Innervates the laryngeal vestibule?

The internal laryngeal nerve accompanies the superior laryngeal artery through the thyrohyoid membrane and provides the sensory and autonomic innervation of the laryngeal cavity to the level of the vocal cords. The smaller external laryngeal nerve provides motor innervation to the cricothyroid muscle.

What muscles are innervated by the vagus nerve?

The recurrent laryngeal nerve branches from the vagus in the lower neck and upper thorax to innervate the muscles of the larynx (voice box). The vagus also gives off cardiac, esophageal, and pulmonary branches. In the abdomen the vagus innervates the greater part of the digestive tract and other abdominal viscera.