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29 Cards in this Set
- Front
- Back
Cranial Nerves
II |
Optic
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III
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Oculomotor-
Pupillary constriction, eye opening, most EOM's. |
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IV
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Trochlear-
Downward--inward--movement of the eye. |
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V
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Trigeminal--
sensory--corneal reflexes |
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VI
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Abductens--
lateral deviation of the eye |
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VII
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Facial--
expressions, closing eyes. |
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Extraocular Muscles control the six cardinal directions of gaze. List the Rectus muscles and CN innervation.
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Superior Rectus--by CN III--
Lateral Rectus-- innervated by CN VI-- Inferior Rectus-- by CN III-- Medial Rectus-- by CN III-- |
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List the oblique Muscles and innervation:
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Inferior Oblique--by CN III--
Superior Oblique--by CN IV-- |
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All lateral movement of the eye is innervated by CN_____.
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VI
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All superior and oblique movement of the eye is innervated by CN_____.
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IV
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Diagnal eye movement is controlled by CN______.
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III
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Red Flags are:
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sudden loss of vision--
scotomas--(area of depressed vision)-- Flashing lights/new floaters-- diplopia (two images single object)-- |
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Risk factors for glaucoma:
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over age 65--
African American-- DM-- Myopia (nearsighted(-- Family Hx-- Ocular HTN-- |
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Be sure to inspect the exterior eye structures using direct and ________ lighting.
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Oblique
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What are you looking for during the funduscopic exam?
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Red reflex--
Optic disc--Margins--color--cup to disc ration-- Retina--arteries--veins--AV crossings, fovea, macula. |
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The posterior part of the eye that is seen through an ophthalmoscope is often call the_________ of the eye.
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Fundus.
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Lateral and slightly inferior to the disc is a small depression in the retinal surgace that marks the point of central vision. Around this darkened area is called the _____________.
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Fovea.
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The yellow roughly circular area with no discernible margins that surrounds the fovea is the _____________.
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Macula.
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When the pupil constricts with light directed in one eye is called a_______________ to light the opposite eye constriction is called a ________.
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direct reaction--
Consentual reaction-- |
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When you shift your gaze from far to near the pupils will _____________. This response is mediated by the __________ nerve.
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Constrict.--
Oculomotor nerve--III |
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Along with the near reaction of the pupils one will see __________ of the eyes, which represents an _________ movement.
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convergence--
extraocular-- |
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Along with near reaction of the pupils one will also see___________ by the______ caused by constriction of the ciliary muscles.
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accommodation--
lens-- |
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The inferior and superior __________ give the eyelids their curved shape.
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tarsal plates
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Meibomian glands are?
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A parallel row of glands along each eye lid margin.
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The meibomian glands along with the lacrimal and conjunctival glands produce fluid that does what?
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Protects the conjuctiva and cornea from drying and inhibits microbial growth, and gives a smooth optical surface to the cornea.
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The ________ gland is hidden mostly within the bony orbit of the eye.
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lacrimal
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Tears follow the _________________ duct into the nose.
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nasolacrimal
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Aqueous humor is produced by the________________ and circulates from the posterior chamber through the pupil into the anterior chamber and drains out through the___________.
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ciliary body--
canal of Schlemm. |
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Narrow angle glaucoma refers to what anatomical area of the eye?
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The canal of Schlemm.
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