Feeding, Satiety, Obesity

Question 1

BMI calculation

Answer 1

weight / [height]squared

Question 2

BMI ranges

Answer 2

BMI up to 25 - thin, normal
BMI 25 - 29.9 - overweight
BMI 30 - 39.9 - obese
BMI 40 or above - morbidly obese

Question 3

Satiation

Answer 3

Sensation of fullness generated during a meal
Signals tell us to reduce food intake
Signals increase during eating

Question 4

Satiety

Answer 4

The period of time between the termination of one meal and the initiation of the next

Question 5

Satiation signals

Answer 5

Tell us to reduce food intake 
CCK
Peptide YY
GLP-1
Oxyntomodulin (OXM)
Obestatin

Question 6

CCK

Answer 6

Secreted in duodenum and jejunum

Released in proportion to lipids and proteins in a meal

Question 7

Peptide YY

Answer 7

Inhibits gastric motility
Slows emptying
Reduces food intake

Question 8

GLP-1

Answer 8

Inhibits gastric emptying

Reduces food intake

Question 9

Oxyntomodulin (oxm)

Answer 9

Released from oxyntic cells of SI after a meal

Supresses apetite

Question 10

Obestatin

Answer 10

Released from cells lining stomach/SI

Reduces food intake

Question 11

Leptin and Insulin

Answer 11

Hormones released to decrease food intake

Question 12

Leptin

Answer 12

Informs brain to alter energy balance

Inhibits feeling of hunger

Question 13

Insulin

Answer 13

Informs brain to alter energy balance

Inhibits food intake

Question 14

Ghrelin

Answer 14

Hunger signal 
Stimulates hunger 
Levels increase before a meal and decrease after a meal 
Increases amount of fat made and stored
Controlled by hypothalamus

Question 15

Management of obesity (medication)

Answer 15

Oralistat

Liraglutide

Question 16

Management of obesity (surgery)

Answer 16

Gastric by-pass