Helloo, I was wondering if anyone could just clear something up for me please? In the communication and homeostatis module about the neurones and the action potential, can the voltage-gated channels open before the threshold potential is reached or do they only open after that's reached?
Also I'm a bit unsure about the value of the resting potential, the textbook says it's -60mV but my teacher says it's -70mV?
Sorry to be a pain, thank you if anyone can help me:-)