Summary: Disease In The Human Body
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Read the summary and the most important questions on disease in the human body
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disease in the human body 2
This is a preview. There are 23 more flashcards available for chapter 23/10/2016
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central appetite control center is In the?
hypothalamus -
prader- willi syndrome
hypothalamus is not working right
Always hungry -
peripheral inputs to appetite control center
various blood hormone levels:
influence brain to eat more or not- cholecystokinin (CCK)
adipocytes -
what could cause ghrelin levels in blood to fall to zero? how would such a change alter appetite
ful stomach
full stomach reduce the size of your stomach ( weight loss surgery)
major appetite decrease -
Insulin after eating a carbohydrate- rich meal
1) rising blood glucose level
2) beta cells in pancreas stimulate to release insulin into the blood
3) liver takes up glucose and stores it -
when is glucagon released?
glucose levels decrease after skipping a meal
alpha cells of pancreas stimulated to release glucagon into blood
so glucagon levels increase -
sleep deprivation and ghrelin levels
sleep deprivation increases gherlin levels
obese people get less sleep which explains why they want to eat more
ghrelin increases appetite -
bariatric (weight loss) surgery ROUX-EN-Y GASTRIC BYPASS
roux-en-y gastric bypass
laparoscopically (small incision )
frequency- 1/3 common but not dominant
effectiveness- very -
some risks of rouz-en-y gastric bypass
infection
dumping syndrome( food rapidly dumps into the small intestine)
malnutrition/maldigestion -
laparoscopic adjustable gastric banding surgery
frequency= 10% declining
effectiveness- not as effective as roux-en-y
risk- safer but long term not very successful typically after 5 years bands needs to be removed.
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