Abstract
This chapter discusses the branches of glossopharyngeal nerve (GN), including pharyngeal branches, muscular branches, and Lingual branches and its anatamical variations. GN rootlets originate from the upper part of the post-olivary groove just above the rootlets of the vagus and 2-4 mm dorsal to the olive. The chapter reports anatamical variations in the relationship between the GN rootlets and the proximal and distal limbs of the high-lying loop of posterior inferior cerebellar artery (PICA). The GN passes through the anteromedial part of the jugular foramen. The GN pierces the stylopharyngeus muscle in 12% of cases; this variation is more common on the left side of the neck compared to the right side. The length of carotid sinus nerve proper nerve (CSNP) varied over the range 2-7 cm and 4-8.8 cm, depending on its origin from the GN and the level of common carotid artery bifurcation.
| Original language | English |
|---|---|
| Title of host publication | Bergman's Comprehensive Encyclopedia of Human Anatomic Variation |
| Publisher | wiley |
| Pages | 1036-1040 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781118430309 |
| ISBN (Print) | 9781118430354 |
| DOIs | |
| State | Published - Jan 1 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 by John Wiley & Sons, Inc. All rights reserved.
ASJC Scopus Subject Areas
- General Medicine
- General Biochemistry,Genetics and Molecular Biology
- General Agricultural and Biological Sciences
Keywords
- anterior inferior cerebellar artery
- carotid sinus nerve
- glossopharyngeal nerve
- jugular foramen
- lingual nerve
- mylohyoid muscle
- pharyngeal plexus
- posterior inferior cerebellar artery
- tympanic nerve