Anatomy o lacrimation, shawin
a) Lacrimal gland
b) Superior lacrimal punctum
c) Superior lacrimal canal
d) Lacrimal sac
e) Inferior lacrimal punctum
f) Inferior lacrimal canal
g) Nasolacrimal canal

Lacrimation, or lachrymation, (frae Laitin lacrima, meanin 'tear') is the secretion o tears, which eften serves tae clean an lubricate the een in response tae an irritation o the een.[1]


  1. Farandos, NM; Yetisen, AK; Monteiro, MJ; Lowe, CR; Yun, SH (2014). "Contact Lens Sensors in Ocular Diagnostics". Advanced Healthcare Materials. doi:10.1002/adhm.201400504.