is/are secreted by the during chronic stressful conditions to promote the adrenal synthesis of glucose from non- carbohydrate substrates. Select one: A. ACTH medulla B. Glucagon cortex C. Glucocorticoids - cortex D. Mineralocorticoids - cortex O E. Epinephrine - medulla Which of the following is not correct about acetylcholine? Select one: A. It has an inhibitory effect on cardiac muscles B. Its receptor in junctions with cardiac muscles is metabotropic C. Its receptor in vertebrate neuromuscular junctions is ionotropic D. It has an excitatory effect on skeletal muscles E. Its receptor is called acetylcholinesterase