Overview
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate, foliate, filiform, and fungiform papillae. Nestled within the papillae architecture are taste buds, which harbor specific gustatory receptor cells dedicated to the transduction of taste stimuli. These cells exhibit sensitivity to the chemical composition of ingested food, releasing neurotransmitters commensurate with the chemical concentration of the food. The released neurotransmitters can stimulate sensory neurons in the cranial nerves: facial, glossopharyngeal, and vagus.…
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