Q. Regarding nondepolarising muscle relaxants (Solved)

1. Jaw and eye muscles are paralysed before the limb and trunk muscles

2. Rocuronium is the most potent nondepolarising skeletal muscle relaxant

3. Atracurium is a steroid derivative

4. Vecuronium blocks cardiac muscarinic receptors, thus inducing moderate increase in heart rate

5. The nondepolarising agents produce a non-surmountable blockade