Which structure runs along tracheoesophageal groove?

The recurrent laryngeal nerve can also ascend anterior (approximately 32.5\%) to or in between the branches of the inferior thyroid artery (approximately 6.5\%). As the recurrent laryngeal nerve ascends, it does so within the tracheoesophageal groove.

What is the tracheoesophageal groove?

Tracheoesophageal groove is. the sulcus formed because of the abutment of the trachea. anteriorly and esophagus posteriorly and is useful for. identifying the RLN. The first surgeon who advocated routine exposure of the.

Where is recurrent laryngeal?

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 Innervates the cricothyroid?

The classical understanding of the anatomy is that the cricothyroid muscle (CTM) is innervated solely by the external branch of the superior laryngeal nerve (EBSLN), and the endolaryngeal muscles are covered only by the recurrent laryngeal nerve (RLN).

What structures are innervated by the cranial laryngeal nerves?

The recurrent laryngeal nerves supply sensation to the larynx below the vocal cords, give cardiac branches to the deep cardiac plexus, and branch to the trachea, esophagus and the inferior constrictor muscles.

What is zuckerkandl tubercle?

Background. Zuckerkandl tubercle (ZT) is a lateral projection from the lateral thyroid lobe which is a constant landmark for finding the recurrent laryngeal nerve during thyroid surgery. It is the condensed thyroid parenchyma located in the cricothyroid junction.

What is the Cricothyroid joint?

The cricothyroid joint (CTJ) plays a key role in pitch adjustment of the human voice. It allows an external elongation of the vocal fold performed by the cricothyroid muscle with a consecutive stretching and increasing of tension.

Between which two anatomical structures does the larynx lie?

The larynx extends vertically from the tip of the epiglottis to the inferior border of the cricoid cartilage. Its interior can be divided in supraglottis, glottis and subglottis.

Which structures does the vagus nerve supply?

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.

What Innervates the larynx?

The vagus nerve is the large nerve that supplies the many branches of nerves that innervate the larynx. The superior laryngeal nerve, its external and internal branches, and the recurrent laryngeal nerve all have very distinct roles in motor and sensory innervation of the larynx.

What Innervates the posterior cricoarytenoid muscle?

The posterior cricoarytenoid is the sole abductor of the vocal folds and is innervated by the recurrent laryngeal nerve.

What cranial nerve Innervates the vocal folds?

The superior laryngeal nerve, a branch of the vagus nerve, innervates the cricothyroid muscle of the larynx. This muscle stretches, tenses, and adducts the vocal cord.