Taste cells

Taste cells are specialized sensory epithelial cells grouped into taste buds on the tongue and palate. They are not neurons but are chemosensory receptors that synapse with afferent nerve fibers. Different types detect sweet, salty, sour, bitter, and umami (savory) stimuli. When activated, they depolarize and release neurotransmitters to stimulate gustatory nerves, sending signals to the brain.