Inferior tympanic canaliculus
Canaliculus tympanicus inferior
- Latin synonym: Canaliculus tympanicus
- Synonym: Tympanic canaliculus
- Eponym: Jacobson's canaliculus
- Related terms: Tympanic canaliculus
Definition
The inferior tympanic canaliculus is subtly located within the bone ridge that divides the external opening of the carotid canal from the jugular fossa. It serves as a channel for the tympanic branch of the glossopharyngeal nerve and the inferior tympanic branch of the ascending pharyngeal artery, allowing them to pass and provide innervation and blood flow to the inner wall of the tympanic cavity.
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Text by Antoine Micheau, MD - Copyright IMAIOS and reviewed by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.
Standring, S. (2016). ‘Chapter 37: External and Middle Ear’ in Gray’s anatomy: the anatomical basis of clinical practice. (41st ed.) New York NY: Elsevier, pp. 637.
