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Ocular system Responsible for vision
Eyes Receptor organs for sight
Intraocular Within the eyeball
Extraocular Outside of the eyeball
Periocular Around the eyeball
Adnexa accessory structures including orbit, muscles, eyelids, eyelashes, conjunctiva, lacrimal apparatus
Stroma Supporting tissue of eye organ
Orbit Bony cavity of the skull containing the eyeball
Periorbita Eye socket
Seven eye muscles Ventral & dorsal obliques, dorsal/medial/ventral/lateral rectus, retractor bulbi
Extrinsic muscles 6 muscles that attach outside eyeball to the eye socket
Levator Palpebrae Muscles Muscles that raise the upper eyelids
Eyelid Contains upper and lower, protect the eye from injury, foreign material and light
Blephar/o Eyelid
Palpebra Eyelid
Palpebral Pertaining to eyelid
Palpebral Reflex Blink reflex
Canthus The angle where the upper and lower eyelids meet
Medial Canthus Corner of the eye nearest to the nose
Lateral Canthus Corner of the eye furthest from the nose
Tarsal Plate Platelike framework within the upper & lower eyelids that provides stiffness and shape
Meibomian Glands Sebaceous glands on the margins of the eyelid (Tarsal glands)
Eyelashes Cilia that protect the eye from foreign material
Conjunctiva Mucous membrane that lines the underside of the eyelid and covers the exposed surfaces of the eyeball
Nictating membrane Conjunctival fold attached at the medial canthus that moves across the cornea (third eyelid)
Lacrimal apparatus Structures that produce, store and remove tears
Lacrimation Normal tear secretion
Lacrimal canaliculi Ducts at the medial canthus that collect tears and drain them into the lacrimal sac
Lacrimal Sac Enlargement that collects tears at the upper portion of the tear duct
Nasolacrimal duct Passageway that drains tears into the nose
Dorsal punctum small spot near the upper medial canthus where the nasolacrimal duct begins
Ventral punctum Small spot near the lower medial canthus where the nasolacrimal duct begins
Multi-layered wall of the eyeball Sclera, choroid, retina
Sclera White of the eye; fibrous outer layer that maintains shape
Choroid Opaque middle
Created by: Libelle