Appetite Regulation Flashcards Preview

Human Physiology > Appetite Regulation > Flashcards

Flashcards in Appetite Regulation Deck (12)
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1
Q
  • Energy required to sustain tissues
  • Directly proportional to body size
  • Higher in men due to more muscle
A

RMR - Resting Metabolic Rate

2
Q
  • Energy expended digesting food

- Necessary investment to get calories from food

A

DIT - Diet Induced Thermogenesis

3
Q
  • Ability to compensate for changes in energy balance
  • Being purposefully wasteful:
    * Need brown adipose tissue
    * Humans don’t have lots of brown adipose tissue
A

Adaptive Thermogenesis

4
Q

Macronutrients

A
  • Fuel your body derives energy from
  • Protein
  • Carbohydrate
  • Fat
  • Alcohol
5
Q

Carbohydrates into fatty acids

A

Denovo lipogenesis

6
Q
  • Hunger hormone
  • Orexigenic - makes you want to eat
  • Gradual response to fasting - glucagon/norepinephrine
  • Rapid inhibition upon feeding - insulin
  • Acylated/deacylated forms
  • Initiates feeding
A

Stomach - Ghrelin

7
Q

Pancreas

A
  • Pancreatic polypeptide
  • Amylin
  • Insulin
8
Q
  • Increases by 500% when eating
  • Rapid response - especially protein and fat
  • Limits feeding rate/duration of feeding
A

Cholecystokinin (CCK)

9
Q

Large/Small Intestine

A
  • Peptide Tyrosine/Tyrosine (PYY) - limits refeeding

- GLP-1

10
Q
  • Inversely related to fat mass

- Signal to hypothalamus, reduces energy expenditure and increases appetite

A

Adipose - Adiponectin

11
Q
  • Hormone involved in keeping lean
  • Positively correlated with adiposity
  • Delayed/tonic response
  • Makes you feel sated
  • Inversely associated with physical activity levels
A

Leptin

12
Q

Flatt 1995 Model

A
  • Yellow - carbohydrate calories available
    * 1000-2000 calories - not enough
    * Muscle glycogen - 250-500g
    * Liver glycogen - 80-110g
  • Red - fat calories
    * 75,000 calories
  • Overflow represents ability of denovo lipogenesis
  • Fuel used determined by availability of carbohydrates