Superior laryngeal nerve
| Superior laryngeal nerve | |
|---|---|
Plan of upper portions of glossopharyngeal nerve, vagus nerve, and accessory nerve. ("Laryngeal" labeled at lower right.) | |
Course and distribution of the glossopharyngeal, vagus, and accessory nerves. (Branches visible in upper right.) | |
| Details | |
| From | Vagus nerve |
| Innervates | Larynx |
| Identifiers | |
| Latin | nervus laryngeus superior |
| TA98 | A14.2.01.160 |
| TA2 | 6339 |
| FMA | 6239 |
| Anatomical terms of neuroanatomy | |
The superior laryngeal nerve is a branch of the vagus nerve. It arises from the middle of the inferior ganglion of the vagus nerve and additionally receives a sympathetic branch from the superior cervical ganglion.
The superior laryngeal nerve produces two branches: the internal laryngeal nerve (its sensory branch) which supplies sensory fibers to the laryngeal mucosa, and the external laryngeal nerve (its motor branch) which innervates the cricothyroid muscle.