Term
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Definition
| pupillary constriction in rspsoen to light . direct in same eye, idnirect in contralteral eye. |
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Term
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Definition
| as object moves clsoer, eyes converge ,lense thickens and puipls constrict. |
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Term
| superior cervical ganglion |
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Definition
| what innervates the pupuilary dilator muslce, which is sy mpathetic. |
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Term
| edegar westfeld nulceus /ciliary ganglion |
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Definition
| provide parasympathetic inernvation. Pupilary constricto r muscle. Also cilliary muscle- when contracted suspesnroy ligaments relax and lense thickens. |
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Term
| sympathetic pathway to eye |
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Definition
| goes from hyptohalamus own to intermedia nuclei. Fromt hese nuclei will go across to s uperior cervical ganglion adn go up to inenrvate the pupillary dilator muscle and superior tarsus msucle (mullersmuscle) |
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Term
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Definition
| interruptino of symapthetic pathwayf rom hypothalamus to thoracic spinal cord to superior cerical ganglion. Ptosis, miosis, anyhdriosis (lack of sweating) |
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Term
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Definition
light comesi nt othe eye and goes ipsilaterally to brahcium of superior ocliculus and to pretectal nucleus.
Two wayst o go bilateray; via optic chiasm to other pretectum nucleus, or via bilateral innervatin of othe pretectal nucleus- then goes to the edegaar westfeld nulceus which hten projects to the cillary ganaglion. LEading to consensual resposne |
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Term
| interupption of pathway posterior to optic tract on light reflex |
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Definition
| = light and consensualr eflexes are fine |
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Term
| interupption of pathway posterior to optic tract on light reflex |
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Definition
| = light and consensualr eflexes are fine |
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Term
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Definition
| contralateral lgiht and consensual reflexes owrk. But ipsilateral eye and coensual reflexes dont |
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Term
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Definition
| contralateral lgiht and consensual reflexes owrk. But ipsilateral eye and coensual reflexes dont |
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Term
| oculomotor pathway nerve lesion on light reflex |
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Definition
| ipsilateral eye will not be able to resposnd coensnually or directly |
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Term
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Definition
initiated by occipital cortex, to accomodation center in superior colliculus.
From accomodation center goes to edenger westfeld nuclus and CN III nucleus for convergence of the eyes |
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