In child speak, what is the difference between alpha and beta blockers?

.: Alpha blocker - dilate smooth muscle - in artery so decrease blood pressure. Also decrease action of norepinephrine (which normally increases blood pressure). Beta blocker - work on heart and decrease heart rate, and decrease action of Epinephrine (which normally increases blood pressure). Simplest answer i can write.

Simplification: To greatly simplify: Alpha receptors constrict the blood vessels. Antagonizing them dilates vessels which lower bp. Beta receptors regulate heart rate and strength of contraction. Antagonizing them slows the heart and reduces the force of contraction (&myocardial oxygen consumption.). This also lowers BP and treats angina.