In Galen's anastomosis, superior laryngeal nerve pierces inferior constrictor of pharynx and unites with
GALEN'S ANASTOMOSIS: Superior laryngeal nerve ends by piercing inferior constrictor of pharynx and unites with ascending branch of recurrent laryngeal nerve. This is called as Galen's anastomosis & is purely sensory.
Superior laryngeal nerve of opposite side
Descending branch of RLN
Ascending branch of RLN
Glossopharyngeal nerve
Anatomy of Larynx