/**********************************************************************************   
ChangeText 
*   Copyright (C) 2001 <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a>
*   This script was released at DHTMLCentral.com
*   Visit for more great scripts!
*   This may be used and changed freely as long as this msg is intact!
*   We will also appreciate any links you could give us.
*
*   Made by <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a> 
*********************************************************************************/

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messages[1]="<span class=\"anatomyDefinition\">Physiologic cup:</span> the central depression within the optic disc. Its floor is bridged by the sieve-like scleral lamina cribrosa. It is encircled by the neuroretinal rim carrying the retinal ganglion cell axons. The physiologic cup diameter is variable, but should not exceed 50% of the total optic disc diameter. Otherwise, consider glaucoma a possible diagnosis.<p>&nbsp;<br>"
messages[2]="<span class=\"anatomyDefinition\">Fovea:</span> central depression within the macula in which the retina consists only of cones. All other retinal layers are pushed aside to the surrounding area so that light can travel unimpeded directly to the cones.<p>&nbsp;<br>"
messages[3]="<span class=\"anatomyDefinition\">Macula:</span> retinal region containing a high density of cones and ganglion cells specialized in visual acuity and color vision.<p>&nbsp;<br>"
messages[4]="<span class=\"anatomyDefinition\">Retinal artery:</span> nourishes the retinal ganglion cells and axons. (The deeper layers are fed by the choroidal arteries.)<p>&nbsp;<br>"
messages[5]="<span class=\"anatomyDefinition\">Retinal vein:</span> drains the retinal artery.<p>&nbsp;<br>"
messages[6]="<span class=\"anatomyDefinition\">Neuroretinal rim:</span> the peripheral portion of the optic disc that carries the axons of the retinal ganglion cells.<p>&nbsp;<br>"

/********************************************************************************/

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