Hunger and eating

Question 1

role of stomach

Answer 1

increased pressure reduces hunger
contracts when hungry
but people without stomachs still get hungry!

Question 2

role of small intestine?

Answer 2

cells lining it send signals to brain about need to eat

Question 3

role of gut bacteria

Answer 3

generate chemicals in response to food

Question 4

role of insulin

Answer 4

increased with increased blood glucose

Question 5

role of leptin

Answer 5

increased fat supply produces leptin which decreases food intake.

Question 6

important areas of the hypothalamus

Answer 6

ventromedial nucleus

lateral hypothalamus

Question 7

role of ventromedial nucleus?

Answer 7

stimulated - dont need to eat

Question 8

role of lateral hypothalamus

Answer 8

stimulated - need to eat.

Question 9

describe set point theory

Answer 9

ventromedial nucleus and lateral hypothalamus work together to create a set point (homeostasis) for food intake

Question 10

limitation of set point theory

Answer 10

too simplistic

Question 11

role o paraventricular nucleus?

Answer 11

stimulates - dont need to eat

Question 12

role of neuropeptide Y

Answer 12

stimulates carb eating

Question 13

role of serotonin

Answer 13

suppresses carb eating

Question 14

role of galanin?

Answer 14

increases cravings for high fat oods

Question 15

role of enteristatin?

Answer 15

decreases cravings for high fat foods

Question 16

role of endocannabinoids

Answer 16

stimulates eating, especially of tasty foods

Question 17

role of peptide YY3-36

Answer 17

feelings of fullness, reduces appetite

Question 18

role of learning?

Answer 18

if you assoicate an event with eating, then you’ll probably eat when doing the event next

Question 19

role of culture?

Answer 19

different cultures have different foods and portion sizes

Question 20

role of social factors?

Answer 20

usually eat 65-75% more when eating with others

Question 21

what is specific hunger

Answer 21

hunger for specific foods

Question 22

what is flavour

Answer 22

combination of a food’s taste and smell.

Question 23

what is appetite

Answer 23

motivation to seek foods pleasures

Question 24

describe body weight for obesity and anorexia nervosa

Answer 24

obseity: BMI > 30
anorexia: BMI in bottom 15th %ile.