Which cranial nerve is considered to be the final and also the first cranial nerve, where is it located, and what purpose might this nerve serve in humans?
Cranial nerve 0, also called the terminal nerve, is considered by scientists to be the final and also the first cranial nerve. This nerve is located on either side of the nasal septum. While cranial nerve 0 is definitely present in sharks and mammals, there is a controversy among scientists as to whether this nerve exists functionally in humans. Many investigators believe that cranial nerve 0 is present in almost one-half of humans and that individuals may use this nerve as a subconscious means for selecting their mates.
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