GENERAL HISTOLOGY

MUSCLE

SKELETAL MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The charge difference across the plasma membrane of an unstimulated cell is called the ____
A
charge potential
B
sarcomere potential
C
resting membrane potential
D
plasma membrane potential
Explanation: 

Detailed explanation-1: -The resting membrane potential of a neurone is the electrical potential, or voltage, across the plasma membrane of an unstimulated nerve cell. It occurs when the net flow of ions across the plasma membrane equals zero. In humans this is said to be around-70 mV.

Detailed explanation-2: -Since the plasma membrane at rest has a much greater permeability for K+, the resting membrane potential (-70 to-80 mV) is much closer to the equilibrium potential of K+ (-90 mV) than it is for Na+ (+65 mV).

Detailed explanation-3: -The electrical potential difference across the resting plasma membrane is called a resting potential. The resting membrane potential of a neuron is about-70 mV-this means that the inside of the neuron is 70 mV less than the outside.

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