GENERAL HISTOLOGY

Detailed explanation-1: -Ionic concentration gradients are established by the action of the sodium-potassium ion pump, an enzyme that requires ATP. Without ATP, the pump will not function. As a result, the resting membrane potential will not exist and the brain will not function.

Detailed explanation-2: -A resting (non-signaling) neuron has a voltage across its membrane called the resting membrane potential, or simply the resting potential. The resting potential is determined by concentration gradients of ions across the membrane and by membrane permeability to each type of ion.

Detailed explanation-3: -Which of the following is not true regarding the establishment of a neuron’s resting membrane potential? answer : Electrical forces do not push sodium ions into the cell.

Detailed explanation-4: -In most neurons the resting potential has a value of approximately −70 mV. The resting potential is mostly determined by the concentrations of the ions in the fluids on both sides of the cell membrane and the ion transport proteins that are in the cell membrane.