The brain circuits outside the hypothalamus is referred to as the extrahypothalamic circuits. (A) What are two key structures involved in the “hedonic” aspects of food intake? (B) What are the roles in food intake/feeding?
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The brain circuits outside the hypothalamus is referred to as the extrahypothalamic circuits. (A) What are two key structures involved in the “hedonic” aspects of food intake? (B) What are the roles in food intake/feeding?
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- In which part of the digestive system the absorption of following substances takes place?(a) Certain drugs(b) Glucose, fructose and fatty acids(c) Water, some minerals and drugs(d) Simple sugar and alcoholIn controlled clinical trials, the consumption of soft drinks containing artificial sweeteners was observed to result in an increased appetite for carbohydrate-containing foods. Based on your knowledge of appetite control by the brain, speculate as to why this phenomenon occurs.What is the action of Parasympathetic division (calming) on salivation after a crisis passes?
- The emptying rate of the stomach is regulated by hormonal and neural mechanisms that respond to both chemical and mechanical stimuli. All of the following factors influence the rate of gastric emptying EXCEPT (A) distention of the duodenum (B) osmolarity of the duodenal contents (C) acidity of chyme entering the duodenum (D) carbohydrate concentration of the gastric contentsExplain the biological mechanism and the chemicals involved in the process of hunger and satiation. ( ESSAY TYPE) Explain the biological mechanism and the chemicals involved in the process of thirst. (ESSAY TYPE) Cite 2 Eating Disorders and present their biological explanations (ESSAY TYPE)The activities of the digestive system are regulated by (a) hormonal processes. (b) local processes. (c) neural processes. (d) a, b, and c are correct.
- Someone who has been running a race is probably quite hungry at the end of it, while someone who has been sitting and snacking all day might have an appetite but would not actually be hungry. Similarly, someone who has taken in all the nutrients he/she needs for a day might be in the condition of satiety, but might still need a pizza, an ice cream and a few bars of chocolate before feeling truly satiated. Explain the different concepts (i. Hunger; ii. Appetite; iii. Satiety and iv. Satiated) to your friend to help him understand how they are related.Can stretch receptors in the gut after a meal can suppress hunger? Explain?Identify the organs of the alimentary canal from the mouth to the anus and briefly state their function? Discuss the roles of the liver, pancreas, and gallbladder in digestion? Why is it important that chyme from the stomach is delivered to the small intestine slowly and in smallamounts?Why does the pancreas secrete some enzymes in their inactive forms, and where are these enzymes activated? Compare and contrast the digestion of the three macronutrients? (Carbs, fats, proteins)