HungerThe desire for FOOD generated by a sensation arising from the lack of food in the STOMACH.
FoodAnything which, when taken into the body, serves to nourish or build up the tissues or to supply body heat. (Dorland, 27th ed)
SensationTransduction of physical or chemical changes in the external or internal environment into nerve impulses by specialized receptors, transmission of these impulses by afferent neurons to the effectors, either directly or through the CNS.
FoodAnything which, when taken into the body, serves to nourish or build up the tissues or to supply body heat. (Dorland, 27th ed)
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