409 5 Flashcards
Obesity
an abnormal increase in the proportion of fat cells mainly in the viscera and subcutaneous tissues of the body
Genetics accounts for ____ differences in people’s weight
30—40%
Food availability, cultural norms, and level of physical exercise account for ___ of weight differences
70%
Appetite is regulated primarily by the
hypothalamus
In the obese, the normal postprandial decline in
ghrelin levels does not occur, which can lead to increased appetite and overeating
Released from descending colon and rectum in proportion to the amount of calories consumed at a meal
Peptide YY
Peptide YY Inhibits appetite by
slowing motility
in obese people levels of peptide YY are
decreased
Cholecystokinin
Secreted in the duodenum and jejunum. Inhibits gastric emptying and sends satiety signals to the hypothalamus
Obesity may be associated with hyperactivity of the production of c____
cortisol
People prone to obesity have an “inborn” reduction in their catabolic responses to
glucose and insulin
one of the factors that decreases older adults nutrition status
Decreased visual acuity
BMI 25-29
overweight
BMI 30 to 39
obese
BMI 40
severe obesity