Cranial Nerve Exam: Normal Exam: Cranial Nerves 2 & 3 - Pupillary Light Reflex

share
3

Recent videos from mebiel

1 Tracheal fire
Jun 24, 2007
2 Cranial Nerves IX & X
Jun 24, 2007
4 Cranial Nerve XI - Motor
Jun 24, 2007
5 Cranial Nerves IX and X
Jun 24, 2007
31 videos see all

what people are saying

add a comment

2000 characters left.
First collected by mebiel
Jun 24, 2007
join Your favorite videos on the web, in one place. Start your collection now.

related videos

tags

collected by 4 people

details

1,180 views

original description

Cranial Nerve Exam: Normal Exam: Cranial Nerves 2 & 3 - Pupillary Light ReflexUniversity of Utah Video46 sec - Jun 23, 2001The afferent or sensory limb of the pupillary light reflex is CN2 while the efferent or motor limb is the parasympathetics of CN3. Shine a flashlight into each eye noting the direct as well as the consensual constriction of the pupils. The swinging flashlight test is used to test for a relative afferent pupillary defect or a Marcus Gunn pupil. Swinging the flashlight back and forth between the two eyes identifies if one pupil has less light perception than the other. Shine the flashlight at one eye noting the size of both pupils. Then swing the flashlight to the other eye. If both pupils now dilate then that eye has perceived less light stimulus (a defect in the sensory or afferent pathway) than the opposite eye. From the NeuroLogic Exam: An Anatomical Approach collection of the Health Education Assets Library (HEAL) http://www.healcentral.org. Copyright The University of Utah 2001; Updated Jan 2004; Updated June 2004; Updated July 2005. The videos are licensed under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License (http://creativecommons.org/licenses/by-nc-nd/2.5/).
Flag this Video as inappropriate or broken