NROC64H3 Chapter Notes - Chapter 8: Orbitofrontal Cortex, Glycosaminoglycan, Antibody
Document Summary
In arteries, digestive tract, skin: gustation and olfaction: connection with needs like thirst, hunger, emotion sex and some memory. Taste: we have a preference for sweetness reject bitter substances, experience can modify our instincts ex coffee, body recognizes deficiency of certain nutrients and develops appetite for them. The organs of taste: not only tongue but palate pharynx and epiglottis, odours from pharnynx can pass into nasal cavity and be sensed by olfactory receptors, tongue specialized: tip sweetness, back bitterness, sides saltiness and sourness. Whole tongue tastes everything but certain areas are specialized: papillae: shaped like mushrooms scattered on the surface of the tongue. Each has 1-100"s of taste buds: taste buds. Also have basal cells that surround the taste cells and set of gustatory afferent axons. Threshold concentration: the concentration at that will just invoke the perception of taste. Just above most tend to be sensitive to only one basic taste.
