When the digestive system is empty, there is an increase in the activity of the sympathetic axons that innervate adipose tissue, the pancreas, and adrenal medulla. All three effects (direct neural stimulation, secretion of glucagon from the pancreas, and secretion of catecholamines from the adrenal medulla) cause triglycerides in the long-term fat reservoir to be broken down into glycerol and fatty acids.

a. true
b. false

Answer: a. true