Gustatory cortex is situated in:
Ans. D Inferior parietal gyrusRef: Gray 's, 41st ed. pg. 313* The sense of taste (SVA-special visceral efferent) is transduced by gustatory hair (neuroepithelium), taste buds and is conveyed via three of the twelve cranial nerves.# The facial nerve carries taste sensations from the anterior two thirds of the tongue (excluding the circumvallate papillae) and soft palate.# The glossopharyngeal nerve carries the taste sensations from the posterior one third of the tongue (including the circumvallate papillae) and,# A branch of the vagus nerve carries some taste sensations from the back of the oral cavity (i.e. posterior-most tongue, pharynx and epiglottis).* Impulses generated by the gustatory taste hairs on the superior surface of the tongue, travel from the tongue to medulla oblongata, to the thalamus, ending up in the gustatorial area of the cortex of the parietal lobe (inferior gyrus) of the cerebrum.* The axons from these cranial nerves ascend in the spinal cord without crossing over. These fibers terminate in the medulla, ventral posterior medial (VPM) nucleus of the thalamus, and then project to the somatosensory cortex within the brain.* Thus, a lesion of the nucleus tractus solitarius (NTS) or solitario-thalamic tract results in loss of taste from the ipsi-lesional, the same side as the lesion, half of the tongue.
Superior temporal gyrus
Inferior frontal gyrus
Superior frontal gyrus
Inferior parietal gyrus
Neuroanatomy