How are first- and second-generation antipsychotics alike and different? What is the mechanism of action for each?

How are first- and second-generation antipsychotics alike and different? What is the mechanism of action for each?
What are extrapyramidal symptoms, and why do they happen? How do you treat them?
What are the key considerations in monitoring patients on these medications?
Please respond to two of your peers. Responses should involve at least one reference and move the conversation forward.