If the lateral hypothalamus of a laboratory rat is surgically damaged, the animal usually exhibits a dramatic reduction in ingestive behaviour.
The lateral hypothalamus responds to any external or internal stimulation that causes you to feel hungry. Once we have eaten, a ventromedial hypothalamus sends signals to the brain and telling us that like we are feeling full and we had enough food consumed, and this cycle continues.
Ingestive behaviour refers to feeding and drinking feelings which is a complex process that may involve a variety of the psychological factors, metabolic processes, neuronal mechanisms, and gastrointestinal mechanisms which convey neural and humoral signals to the central nervous system (CNS).
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