are a facial nerve that transmits neural impulses from the brain to the tongue, where these impulses are translated into the sensation of taste. It joins the facial nerve (cranial nerve VII) inside the facial canal, at the level where the facial nerve exits the skull via the stylomastoid foramen.
The chorda tympani
appears to serve an important role in inhibiting the signals from the other nerves involved in the sensation of taste. Chorda tympani
damage can result in a disruption of the inhibitory function, causing the sensation of taste to become erratic and uncontrolled.
Functions of chorda tympani nerve:
Conveys general sensation from the anterior 2/3 of tongue which includes pain and temperture
Supplies secretomotor fibers to the parotid gland
Supplies efferent vasodilator fibers to the tongue
It carries taste sensation from the anterior 2/3 of tongue
Supplies secretomotor fibers to the salivary glands in the floor of the mouth
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