Fornix of lacrimal sac - Eye - Orbital cavity - e-Anatomy
View the module

Fornix of lacrimal sac

Fornix sacci lacrimalis

Definition

Antoine Micheau & Muhammad A. Javaid

The fornix of lacrimal sac is the blind upper expanded end of the lacrimal sac located superior to the opening of the common lacrimal canaliculus. It extends slightly above the medial palpebral ligament within the lacrimal fossa.

Function

The fornix acts as a small reservoir for tears before they pass into the body of the lacrimal sac and subsequently into the nasolacrimal duct.

Is this definition incorrect or incomplete?

References

  • Ducker L, Rivera RY. Anatomy, Head and Neck: Eye Lacrimal Duct. [Updated 2023 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan. Available from: https://www.ncbi.nlm.nih.gov/books/NBK531487/

Gallery