GENERAL HISTOLOGY

NERVOUS

NEUROGLIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which ion channel activity affects the resting membrane potential?
A
sodium leakage channel
B
potassium leakage channel
C
sodium ligand gated channel
D
calcium voltage gated channel
Explanation: 

Detailed explanation-1: -The presence of non-gated ion channels in the cellular membrane is the answer. The most important component of the resting membrane potential is the presence of K+ leak channels in the cellular membrane.

Detailed explanation-2: -An action potential relies on many protein channels. In a neurone, the Potassium leak channel and Sodium-Potassium pump maintain the resting potential. The voltage gated sodium channels and the voltage gated potassium channels are involved in the progression of an action potential along the membrane.

Detailed explanation-3: -The resting membrane potential is determined mainly by two factors: the differences in ion concentration of the intracellular and extracellular fluids and. the relative permeabilities of the plasma membrane to different ion species.

There is 1 question to complete.