Maverick County Courthouse, Eagle Pass, Texas 188/254 âThe Rio Grande forms Maverick Countyâs western and international border with Mexico; the county is bordered on the north by Kinney County, on the east by Zavala County, and on the south by Webb County.
The function of the optic chiasma  is to relay electric signals as they pas â¦ s from the optic nerve to  the brain.
The optic nerve, cranial nerve II, transmits visual information to occipital cortex. The nerve is easily found by locating a large X-shaped structure just caudal to the olfactory bulbs. The fibers anterior to the intersection of the X, are optic nerve fibers. Axons caudal to the intersection, called the optic chiasm, are optic tract fibers. Take time now to consider these facts: