The action of platelet-derived growth factor  (PDGF) is to stimulate the production of which cells?

“Wanting” is primarily mediated by

If a reward is better than expected, dopamine signaling will

The Johnson & Kenny (2010) study suggests that overeating resembles addiction because

The Human Microbiome Project found that

In this paper (Bulk 2025), researchers studied the effects of food odor on satiety pathways. The first experiment was designed to quantify the response to food odor across many different brain regions. Using both PET scans and Fos activation (a readout of neuronal activation), they measured the activity of different brain regions before and after exposure to food odor. In this figure, they report their results. CE/CP is analogous to brain activity or neuronal activation. Based on this figure, which of the following brain regions showed the strongest response to food odor?

In normal insulin signaling, IRS activation leads to

The “settling point” model suggests that body weight is _______________________

Chronic overstimulation of reward pathways leads to __________________________

Air in the pleural cavity is termed