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Created by alexlpeart
over 11 years ago
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Question | Answer |
Define hunger. | Discomfort that is caused by lack of food or a craving for food. |
Define satiation. | The process that leads to the termination of eating, which may be accompanied by the feeling of satisfaction. |
Define satiety. | The feeling of fullness which persists after eating, potentially suppressing further energy intake. |
Give the site and action on appetite of; Ghrelin, Peptide YY, Pancreatic Polypeptide and Leptin | Ghrelin-stomach, increases appetite. Peptide YY- Ileum & colon decrease appetite . Pancreatic Polypeptide-Pancreas, Decrease appetite. Leptin-Adipose tissue, Decrease appetite |
Give some reasons for decreased ghrelin release when we eat. Also give the nervous pathway the effect of ghrelin is passed down. | Stomach distention causes less ghrelin to be released. Effect of ghrelin passed down the vagal afferent pathway to the brain. |
When PYY was measured in a fasted state what was found? | Obese people had lower PYY than normal weighted people. |
What hormone would increase after we have eaten a fatty meal? | CCK |
What happens to leptin levels over time. Why is this? | No real fluctuation within our body as it is released from the adipose tissue which doesn't change over time unlike ghrelin which is controlled by stomach distention. |
What part of our brain is responsible for combining the signals from all round out body to control appetite? | Hypothalamus |
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