This nerve is one of the 12 cranial nerves. It is for the sense of taste. This sense is important because many poisons are bitter.
the gustatory nerves
This nerve is one of the 12 cranial nerves. It is for the sense of taste. This sense is important because many poisons are bitter.
gustatory nerve
The gustatory pathway has a more complicated course. There are more fiber tracts involved in the transmission of the neural impulses for taste. The facial nerve transmits gustatory signals or messages from the anterior two-third of the tongue. However, for the posterior one-third of the tongue,the glossopharyngeal nerve is responsible for the transmission of the gustatory signals along the pathway.
Olfactory receptors
Gustatory
Autonomic nerve function in body
what is the function of the median nerve
The primary gustatory cortex. Special sensory information for taste reaches the gustatory cortex via the chorda tympani and greater petrosal branch of the facial nerve, the lingual branch of the glossopharyngeal nerve, and the superior laryngeal branch of the vagus nerve. The special sensory information for taste originates in taste buds located on the upper surface of the tongue, soft palate, pharynx, and the upper part of the esophagus.
Olfactory nerve (sense of smell) Optic nerve (sense of vision) Vestibulocochlear nerve (sense of hearing and balance) Trigeminal nerve (sense of touch and pain for the face) Gustatory nerve (sense of taste)
Brances of the Facial (VII), Glossopharyngeal (IX), and Vagus (X) cranial nerves carry information about taste
Primary somasthetic afferent neurons are found taste buds in the anterior 2/3rds of the tongue. Those fibers are carried towards the midbrain by the Chorda Tympani nerve (those are joint fibers from the lingual branch of the mandibular division of the Trigeminal nerve), which enters the tympanic cavity via the iter chorda posticus and exits thru the iter chorda anticus or the petrotympanic fissure. The nerve synapses with in the geniculate gangion of the VII cranial nerve. The secondary sensory neurons now travel through to the midbrain where they synaps with Nucleus tractus Solitarious. The tertiary fibers then go to parietal operculum of the parietal lobe (brodman area #43) the ultimate level of concious interperation of gustatory (taste) impressions.