Mastoid canaliculus

Last revised by Dr Henry Knipe on 02 Dec 2019

The mastoid canaliculus (also known as Arnold's canal) arises from the pars vascularis of the foramen jugulare and runs to the mastoid segment of the facial nerve canal and contains Arnold nerve (auricular branch of vagus nerve). 

History and etymology

Arnold's canal, and its corresponding nerve, are named after Philipp Friedrich Arnold, German anatomist (1803-1890) 2

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