Physiology: feeding & satiety 3 Flashcards
1
Q
what communicates to the brain the amount of body fat
A
the adiposity signals
2
Q
what 2 hormones report the fat status to the brain
A
insulin and leptin
3
Q
how do lectin and insulin levels change as more fat is stored
A
levels in blood increase with fat storage
4
Q
what is the function of leptin and insulin in feeding behaviour
A
inform hypothalamus to later energy balance, eat less and increase energy expenditure
5
Q
when does the function of leptin and insulin malfunction
A
in an obese state
6
Q
where is leptin released from
A
secrete from adipocytes
7
Q
where are there a high level of leptin receptors
A
hypothalamus
8
Q
give 3 of the biological roles of leptin
A
food intake, maintenance of immune system, energy expenditure
9
Q
what causes leptin resistance
A
diet-induced obesity
