Cranial Nerves Small 234×320 Medium 469×640 Large 750×1024 Download Tiff Original 1758×2400 | (598.9 KB) Description Deep origins of cranial nerves from the fourth ventricle. Keywords "cranial nerves" Galleries Human Peripheral Nervous System Source: The Encyclopedia Britannica (New York, NY: The Encyclopedia Britannica Company, 1910)