If you touch a pot that just came off the stove and it is hot, your body sends to the brain so that you move your hand. A. neurons
B. impulses
C. dendrites
D. synapse

Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?