Correct Answer: Postganglionic fiber is cholinergic. Have a nice day!
Getting a cramp while swimming is the worst that could happen to us people. I think the best answer here is to relax, float and massage the cramped muscle because, if you try to keep swimming the muscle could tighten more and could get out of hand and could cause you to drown.
Coronary or Congenital heart disease is the result of reduced blood flow to the heart due to narrow valve or valve defects. This defects may be caused by build up of fatty deposits. So the statement you have given is TRUE.
