A key aspect of anorexia nervosa is
a. an intense fear of obesity.
b. the binging and subsequent purging of food.
c. an intolerance for exercise.
d. an understimulation of NPY and ghrelin receptors.
e. a defect in insulin metabolism.
Question 2
In what sense could a fall in leptin levels be considered as a hunger signal?
a. Reduced leptin levels remove an inhibitory influence on NPY/AGRP neurons.
b. Leptin normally excites NPY/AGRP neurons.
c. Reduced leptin levels remove an inhibitory influence on CART/alpha-MSH neurons.
d. Leptin normally inhibits CART/alpha-MSH neurons.
e. Leptin increases the production of ghrelin.