Lacrimal canaliculi
Lacrimal Canaliculi
Lacrimal Canaliculi (pronunciation: /ləˈkrɪməl kəˌnælɪˈkjuːlaɪ/), also known as tear ducts, are small channels in the eyelids that drain tears from the eye's surface into the lacrimal sac.
Etymology
The term "Lacrimal Canaliculi" originates from the Latin words 'lacrima' meaning 'tear' and 'canaliculus' meaning 'small channel'.
Anatomy
The Lacrimal Canaliculi are part of the lacrimal apparatus, which is responsible for the production, distribution, and drainage of tears. Each eye has two Lacrimal Canaliculi, the superior and inferior canaliculus, which begin at the puncta lacrimalia on the inner corner of the eye.
Function
The primary function of the Lacrimal Canaliculi is to drain tears from the conjunctiva and cornea of the eye into the lacrimal sac, which then drains into the nasolacrimal duct. This process helps to keep the eye moist and free of dust and debris.
Related Terms
- Lacrimation: The process of producing tears.
- Dacryocystitis: An infection of the lacrimal sac, often due to obstruction of the lacrimal canaliculi.
- Dacryostenosis: A narrowing or blockage of the lacrimal canaliculi.
External links
- Medical encyclopedia article on Lacrimal canaliculi
- Wikipedia's article - Lacrimal canaliculi
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