What nerve Innervates the larynx?
The vagus nerve
The vagus nerve is the 10th cranial nerve and is responsible for supplying the entire larynx with its complex innervation through the different nerves and respective branches discussed in this article.
What muscles does the recurrent laryngeal nerve innervate?
The recurrent laryngeal nerves control all intrinsic muscles of the larynx except for the cricothyroid muscle. These muscles act to open, close, and adjust the tension of the vocal cords, and include the posterior cricoarytenoid muscles, the only muscle to open the vocal cords.
What muscles are innervated by 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 nerves innervate muscles?
Nerves
- Brachial Plexus.
- Axillary Nerve.
- Musculocutaneous Nerve.
- Median Nerve.
- Radial Nerve.
- Ulnar Nerve.
What nerve innervates the pharynx?
glossopharyngeal nerve
The pharyngeal muscles receive innervation from the vagus and glossopharyngeal nerve to work in sync to propel food from the oral cavity into the esophagus.
What is the cricothyroid innervated by?
superior laryngeal nerve
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).
Which intrinsic laryngeal muscle is innervated by the recurrent laryngeal nerve?
Posterior cricoarytenoid muscle
Posterior cricoarytenoid muscle The recurrent laryngeal nerve innervates this muscle, as it does all the other intrinsic muscles of the larynx, with the exception of the cricothyroid muscle.
What does glossopharyngeal nerve innervate?
The glossopharyngeal nerve innervates taste discs located on the tongue and the facial nerve innervates taste discs of the smooth lining of the oral cavity (Osculati and Sbarbati, 1995).
What cranial nerve Innervates the Cricopharyngeus?
vagus nerve
Cricopharyngeus The CP receives innervation from the pharyngeal plexus, which is supplied by three major nerves: vagus nerve branches including the pharyngeal branch of the vagus nerve [also referred to as the pharyngoesophageal nerve (PEN), superior laryngeal nerve (SLN), and recurrent laryngeal nerve (RLN)]; the …
What does the cricothyroid do?
The cricothyroid muscle pulls the arch of the cricoid cartilage upwards. In doing so, it pulls the arytenoid cartilages backwards, making the vocal folds longer and tighter.