KINESIOL 1Y03 Lecture Notes - Lecture 18: Lacrimal Canaliculi, Palpebral Fissure, Lacrimal Sac
3 Sep 2018
School
Department
Course
Professor
Document Summary
They help protect the eye from foreign objects (like dust) and perspiration, and help shade the eyes from the sun: palpebrae (eyelids) Upper eyelid is called the superior palpebra. They will shade the eyes during sleep, protect from excessive light and foreign objects, and spread lubricating secretions over the eye (tears: palpebral fissure. Basically opening for the eye; where we can see the eyeball: commissure (medial and lateral) Where the palpebrae meet: caruncle or lacrimal caruncle. At night the material dries and is referred to as sleep: conjunctiva. Mucous membrane that forms the inner lining of the eyelid. Will fold back on itself to cover the white of the eye up to the level of the cornea. Bulbar conjunctiva: portion lining white of the eye. Conjunctiva basically creates a pocket to stop foreign objects from entering posterior of the eye where we have the optic nerve and blood vessels.
