Sam has a really good day at work. now he is at home sitting in front of the tv and is highly relaxed. his blood pressure and heart rate are lower than usual. this relaxation response is probably the result of which nervous system?

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d