The centre associated with hunger is present in: fore brain or mid brain or hind brain or all of these?

Question

Answer

Fore Brain is responsible

Answer

Forebrain consisting cerebrum followed by telencephalon or diencephalon which which consists two hormones 1.)Thalamus and 2.) Hypothalamus
*)Thalamus is responsible for relay motor and sensory signals to the cerebral cortex....but *) Hypothalamus controls body temperature , #hunger# ,thirst , fatigue ,sleep , and cicadean rythm ....and hence , we can say that the centre associated with hunger is present in forebrain.

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Fore brain , hypothalamus controls the hunger in human body which is the part of fore brain.

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mid brain

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Fore brain

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fore

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In forebrain because in forebrain the cerebrum has different areas for performing different functions..

Answer

The Centre Associated with Hunger

The centre associated with hunger is primarily located in the hypothalamus, which is a part of the forebrain. However, it is important to note that the regulation of hunger is a complex process that involves various regions of the brain working together.

Hypothalamus and Hunger
- The hypothalamus is a small but crucial region located at the base of the brain. It plays a vital role in regulating many physiological processes, including hunger and satiety.
- Within the hypothalamus, there are specific nuclei that are responsible for controlling appetite and food intake. The two main nuclei involved in hunger regulation are the lateral hypothalamus (LH) and the ventromedial hypothalamus (VMH).
- The LH is often referred to as the 'feeding center' as it stimulates hunger and initiates food-seeking behaviors. Activation of the LH triggers the release of neuropeptides that increase appetite.
- Conversely, the VMH is known as the 'satiety center' as it inhibits hunger and promotes feelings of fullness. Activation of the VMH leads to the release of neuropeptides that suppress appetite.

Other Brain Regions Involved
- While the hypothalamus plays a central role in hunger regulation, it does not work in isolation. Several other brain regions and systems are involved in the control of hunger.
- The brainstem, which is part of the hindbrain, receives signals from the gastrointestinal tract and relays them to the hypothalamus. These signals provide information about nutrient levels, digestive processes, and satiety hormones.
- The cerebral cortex, which is part of the forebrain, is responsible for higher-order cognitive processes related to hunger, such as food preferences, reward, and decision-making.
- The limbic system, including the amygdala and hippocampus, is involved in emotional and memory aspects of eating. These regions can influence hunger and eating behaviors through their connections with the hypothalamus.
- Additionally, the hormone ghrelin, produced by the stomach, acts on the hypothalamus to stimulate hunger. Leptin, a hormone secreted by adipose tissue, provides feedback to the hypothalamus about energy stores and plays a role in regulating appetite.

Conclusion
In summary, while the primary centre associated with hunger is located in the hypothalamus (forebrain), hunger regulation involves a complex network of brain regions and hormonal signals. The hypothalamus, in conjunction with the brainstem, cerebral cortex, limbic system, and hormonal feedback, ensures the appropriate balance between hunger and satiety to maintain adequate energy levels and promote survival.

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