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Moon:

Anatomy Tutorial: Accessory Structures of the Eye

5 months ago
Moon:

MgujSMP.png

5 months ago
Moon:

\({\bf{Overview:}}\) main function = protect and lubricate the eyes three main components: eyelids, superficial epithelium, lacrimal apparatus \({\bf{Eyelids:}}\) protect the eyes from damage or dirt > palpebral fissure: gap between the eyelids > eyelids connected at medial and laterl angles > eyelashes: can detect movement and trigger blinking reflex - tarsal glands: sebaceous glands on the eyelashes - lacrimal caruncle: make eye secretions (those brownishyellowish things that show up around your eyes after you wake up) - tarsal plate: connective tissue under subcutaneous layer - muscles that control the eyelids are between the tarsal plate and skin > conjuctiva: epithelium covering eye and underneath the eyelid - palpebral: inner surface of eyelids - bulbar: outer surface of eye |dw:1540172236935:dw|

5 months ago
Moon:

\({\bf{Lacrimal~Apparatus:}}\) produces tears, which lower friction, clean the eye, protect against infection, supply the epithelium w/ nutrients, and let you cry about your dead waifu rip why live anymore > contains: lacrimal gland, superior/inferior lacrimal canaliculi, lacrimal sac, nasolacrimal duct > fornix: where the conjuctiva meet > lacrimal gland: tear gland, secretions have lysozyme and antibodies > lacrimal lake: site of tear accumulation > lacrimal puncta: drain the lake > lacrimal canaliculi: drain into the lacrimal sac > nasolacrimal: transfers tears to inferior meatus near the nasal concha |dw:1540172934840:dw|

5 months ago
Moon:

Adapted from Human Anatomy, Martini, et. al. 9th edition

5 months ago
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