Low, a threat which poses a minimal risk to the victim and public safety. 1  Threat is vague and indirect. 2  Information contained within the threat is inconsistent, implausible or lacks detail. 3  Threat lacks realism.  Content of the threat suggests person is unlikely to carry it out.
The Facial Nerve The facial nerve is complicated. Not only does it control most muscles of the face; this nerve also transmits taste signals from the front of the tongue, conveys parasympathetic fibers that make the eyes tear and mouth salivate, and is responsible for a little bit of sensation around the ear.
Taste Centers in the Brain As explained under Taste Buds, food and substances dissolved in the saliva enter the taste pores where it makes contact with the microvilli of the taste (gustatory cells). This then triggers a depolarization of the taste cell membrane, a subsequent release of neurotransmitters and stimulation of the surrounding nerve fibers. Signals from the nerve fibers of the taste buds travels via cranial nerves VII, IX and X to the tractus solitarius (gustatory area) located in the posterior brain stem. From here neurons transmit signals to the thalamus (ventral posterior medial nucleus).