Suggest several ways to pharmacologically overcome a nuerons refractory period and thereby increase ...

i have four questions that I am struggling with for the Physioex 9.0 exercise 3 activity questions and was wondering if anyone else could help me!


Activity 6 question 3 - " suggest several ways to pharmacologically overcome a nuerons refractory period and thereby increase the action potential frequency."

activity 1 question 3-
 describe what would happen to a resting membrane potential if the concentration of large intracellular anions that are unable to cross the membrane is experimentally increased"

Activity 7 - question 2. " when you burn your finger on a hot stove, you feel sharp, immediate pan, which later becomes slow throbbing pain. these two types of pain are carried by different pain axons. speculate on the axonal diameter and extent of myelination of these axons"

 Activity 8. - question 1 " if you add more sodium to the extracellular solution, could the sodium substitute for the missing calcium?"


if you could hellp that would be great