PSY290H1 Lecture 6: Lecture 6 - Sensory Processing II
Document Summary
Taste stimuli: the basic taste stimuli o o o o o. Umami = the taste of meat (savory: tongue o o o o. Circumvallate papillae - largest, found at back of tongue, are 9. 50% of cell receptor cells occur by these. Foliate papillae - second largest, found on sides of tongue. Fungiform papillae - smallest, found near tip of tongue. Taste buds are clusters of taste receptor cells: taste receptor cells. Apical end has thing extensions (microvilli - an opening that saliva. Saliva has access to these (in the crevasses of the papillae) Project toward the surface of the tongue enters in) that are clustered in taste pores. Basal cells - progenitor cells which become new taste cells every 2 weeks. Are the baby cells that make the new taste receptor cells. Basal end innervated by gustatory nerve fibers o o o. Salt-sensitive taste cells have special na+ channel (different than ones discussed before)
